Joseph Demarco
Joseph Demarco was a Maltese medical practitioner, a scientist, and a major philosopher. His areas of specialisation in philosophy were mostly philosophical psychology and physiology.
Demarco's extensive interests make him quite unique. Indeed, though his main concern was human health, in his case this must be understood in the widest of meanings. Certainly, he was fascinated by the mechanisms of the human body, but also with its infirmities, especially within their psychological and social contexts. This brought him to be very much attracted to the philosophical underpinnings of the human condition in all of its aspects. Both his life and his writings are proof enough of this.
Life
Beginnings
Demarco was born on January 2, 1718, at Cospicua, Malta. This seaport and dry-dock hub was also a place where many different peoples congregated. More so since the then Grand Master of the Knights Hospitallers, António Manoel de Vilhena, had given free entry to the harbours to all nations.Fortunate enough to be born within a well-off family, Demarco was given a good education, probably at the Collegium Melitense of the Jesuits in Valletta, Malta. From an early age, his eyes were set on the medical profession, one highly regarded and very much encouraged by the Knights Hospitallers. Already as a young boy, his medical intellectual curiosity drew him to speculate about the effect of atmospheric conditions on the human body, as his writing from 1933, at only fifteen years of age, attests. Of course, he was also very much interested in understanding physical illnesses, as his writing from 1741, on swellings caused by liquid retention, shows. In addition, he was from an early age piqued by instances of pathological madness, common to congested urban areas as his home-town, Cospicua, was, and made some particular observations about the phenomenon around 1742.
However, during this formative time Demarco also entertained interests in other scientific areas. Still in his early twenties, around 1742 he engaged himself in speculations on standard trigonometry and elementary arithmetic, giving them also some philosophical depth. During the same period, he wrote short studies on hydrostatics in general and on hydrostatic sources and technology.
France interlude
At just 24 years of age, in 1742, Demarco went to France to pursue a medical degree. Naturally, this was made possible by his parents’ financial resources. He studied at the University of Montpellier Languedoc-Roussillon région of the south of France. In particular, he studied under the renowned physician and botanist, François Boissier de Sauvages de Lacroix. This is also attested by a document written by Demarco, Physiologie Cursus: Anatomico – meccanico – experimentalis which originates from De Sauvages’ course on the subject.Demarco's writings during this period bear out to his professional and proficient stance in medical matters. In particular, one may note his investigations dealing with chest and abdominal ailments. In all probability, it was this dexterity and expertise which convinced his lecturers to trust him, from amongst his peers, with a course on physics. This must have been highly prestigious for the young freshman.
Having completed his two-year course in medicine, Demarco defended his thesis in 1743. It was entitled Dissertatio Physiologica de Respiratione, ejusque Uso Primario. The work was published a year later, in 1744, at Montpellier.
Malta period
Demarco returned to Malta as Doctor of Medicine, but also with a keen eye on social affairs. It seems that his acquaintance with Illuminist philosophy while in France enhanced his sensitivity towards communal needs and societal acclimatisation. Nevertheless, throughout his long career he never directly involved himself in any political activity, not even when the French Revolution erupted on the European scene.His commitment was of a purely medical nature. And if every now and then he reached out into philosophical spheres, he always did this in strict relationship to his medical speculations. Demarco, in fact, did not seem sympathetic towards any revolutionary beliefs or objectives. On the contrary, he was a close collaborator and a personal friend of the Grand Master of the Knights Hospitallers, Manuel Pinto da Fonseca, who immediately, on Demarco's return to Malta, chose him as Principle Medical Officer for the Maltese Islands. His loyalty to the Knights Hospitallers went unblemished throughout his entire life.
Professional career
Demarco's main professional asset was his sharp eye for observation. This is amply attested by the thirty-four works we have from his forty-two-year career in Malta after his return from Paris. All of his speculative reflections, including his philosophical ones, squarely rest on the authority of concrete experience and on pure sense data.Though highly proficient from a professional point of view, Demarco was consistently appealed by the theoretical foundations of the medical art and by the intellectual and academic relationships which particular illnesses suggested. As seen from his various works, he inquired into philosophy in general, social philosophy, physics, pathology, mechanical physics, experimental philosophy, philosophical physiology, science in general, and various other fields of an academic and rational nature.
In 1788, when Demarco was 70 years of age, the Grand Master of the Knights Hospitallers, Emmanuel de Rohan-Polduc, requested that he went to Tripoli, then an Ottoman province, to see to the health of the pasha there, who was gravely ill. This incident demonstrates the high esteem in which Demarco was held. Not only was the matter complicated from medical point of view, but also politically sensitive. Fortunately, the mission was a success, and Demarco's standing was never as strong. While in Tripoli he continued to indulge his scientific and philosophical curiosity by making copiousness notes about the quality of the soil, the atmosphere, and also about local customs. He even took down observations about various illnesses and diseases, particularly on the types of pathological madness he encountered there.
Death
On his return to Malta, Demarco showed serious signs of physical decline. The Order of Knights Hospitallers which he loved was fatally in trouble, not only because of the revolution in France, but also for its internal bankruptcy, corruption, and loose morals. It seemed that Demarco was passing away together with a whole age.He died at Cospicua, his home-town, on August 13, 1793, and was buried at the parish church at Cospicua.
Published works
Demarco's published works are just a handful. They are the following. While the latter three are of some interest to philosophy, the first is of a medical interest only.- Dissertatio Physiologica de Respiratione, ejusque Uso Primario. – The publication contains six chapters respectively dealing with the following: the organs of breathing and their strength; the nature and peculiarities of respiratory air; the function of breathing; the instruments of expiration, their powers, functions, and the reciprocation of this action; the phenomena of respiration; and the primary use of respiration. The work, which is made up of some 100 pages, and written in Latin, has little philosophical value. It was published by A. Rochard in Montpellier.
- Tractatus Mechanicus de Non Naturalibus – This book in Latin was published in Avignon, France, by Francis Girard. It bears the long subtitle: Qui est brevis explicatio mutationum, quas in humano corpore producuut Aer, Diaeta, etc. simul cum inquisitione in naturam et usum balneorum. Quibus præfixa est Doctrina Secretionis, pluribus in propositionibus.
- De Lana – This 367-page book was published in Malta at the printing press of the Knights Hospitallers in Valletta. It mainly deals with the proper application of wool in well-being and sickness. This indicates that's Demarco's intent here was not merely technical. Indeed, the work is not exactly philosophical. Nonetheless, Demarco explores the connection between the industrial production of wool fabric and human living, and the relationship between the growth of wool and mechanics. The work bears the official approbation of Henry Ercole, amongst others, on behalf of the competent authorities. At the end of the book, Demarco also includes a separate study, which is the following:
- De Chocholata – The work is made up of three chapters over 28 pages, and carries the subtitle: * Dissertatio de Chocholata ejusque usu e abusu in medicina ubi inquiritur etiam: an potione cocholate jejunium ecclesiasticum frangatur. Despite the title of this work, which might be seen as frivolous, the study is a very interesting one, both from an historical and cultural point of view as well as from a moral approach. In Demarco's time, chocolate was a liquid product imported from beyond European shores, and whose precise nature was not yet known. The moral problems apparently created by chocolate consumption must have been very relevant at the time. In fact, the censors’ comments on the subject, and on its moral aspect.
Extant manuscripts with philosophical interest
All manuscripts are written in Demarco's typical minuscule, crammed and barely legible handwriting, which of course makes reading, transliteration, translation and study immensely difficult. This is one of the most pertinent reasons, amongst others, for which Demarco's intellectual enterprise remains unexplored completely unto this day.
Philosophy
- De Logica – A work in Latin which bears the subtitle Prælectiones Nonnullæ. It seems to have been intended as an introduction to logic for beginners.
- Atrium in Universam Physicam Experimentalem – This extant manuscript in Latin is incomplete and was left in draft form by Demarco himself. It is a commentary on the first book of Aristotle’s De Naturalibus or, in other words, on his De Sensu et Sensato of his Parva Naturalia. What brought Demarco to commence this commentary was a new publication issued at Avignon, France, of Aristotle’s work.
- Varia – Two Latin manuscripts which are together composed of 550 folios. They contain a colossal number of reflections in no order whatsoever. Herein Demarco simply jotted down any thought and musing as they came to mind. Very often is quite difficult to distinguish one from the other. At the end of the work, Demarco was considerate enough to include an index of contents. Obviously this was for his own use, as it is absolutely impossible to follow.
- Generalis Philosophiæ Atrium – The main idea of this manuscript in Latin is to provide a general introduction to what Demarco calls philosophiæ experimentalis and all its divisions. The work has 43 chapters organised under 13 titles. The extant manuscript also includes marginal notes added by Demarco himself. The content deals with philosophy by respectively focusing on its qualifications; its structure; its objectives; its initial history; its history after classical times; its development; its academic divisions; the growth of its schools of thought; its main themes; its results; important Presocratic themes, and their meaning. The last title is reserved for some general comments concerning philosophy.
Social philosophy
- Epistola Dedicatoria – Text of an open letter in Latin supposedly sent from Senglea, Malta, on January 12, 1754, to Don Josepho de Dueñas, one of the Knights Hospitallers in Malta. The 15-folio long letter is certainly of a historical and literary value. However, also is interesting for the fact that it reveals some of Demarco's philosophical aptitudes.
- Delle Torture – This manuscript in Italian had been left unfinished by Demarco himself. It is a very interesting study on the use of torture from different angles. Nonetheless, Demarco stops short of expressing any moral pronouncement on the subject.
- Mannarino – This is another open letter dedicated to a personality in Maltese history, Don Gaetano Mannarino. This priest was actually a contemporary of Demarco. From February 1773, he organised a group of fellow priests who, eventually, took up arms against Francisco Ximenes de Texada, the Grand Master of the Knights Hospitallers, in protest for retracting some of their rights and privileges. The actual revolt of the priests took place on September 9, 1775. Nonetheless, Demarco's letter was written on October 22, of two years earlier. It still addresses some of the presumed issued which were being brought forward by the priests. Typically, in his missive Demarco sides with the Grand Master's point of view, and admonishes Mannarino and his collaborators for being so unreasonable and unruly.
Pathology
- Fasti: Morborum Melitensis – An interesting document in which Demarco progressively recorded his thoughts and reflections. The manuscript, which is composed of 296 folios, is reserved for observations concerning infirmities of the body and also of the soul. Some entries are of philosophical interest. The document opens with a Latin preface, and closes with a Latin epilogue and, finally, 50 aphorisms.
- Physiologie Cursus: Anatomico – meccanico – experimentalis – A study in Latin which deals with various aspects of physiology. Though the mechanistic concept of the body and of creation is accepted as basic, Demarco produces some objections and discussions for the acknowledgement of its absolute validity.
- Patologicus Brevis Cursus – A work in Latin which goes into the nature of mental illnesses. The content is divided in 222 parts.
Philosophical physiology
- Tractatus de Rabie – This Latin composition is made up of only 23 folios. The content, which does not include any internal divisions, was the work of a young Demarco probably before studying in France. It largely focuses on the nature of anger, especially from a physiological point of view. Nevertheless, Demarco also sees it fit to touch upon some philosophical themes here and then.
- Tractatus de Affectione – The main theme of this manuscript in Latin is the passions which overcome humans when their freedom of will becomes wanting. The work, which is made up of 76 folios, is divided in subtitles. At the end it includes an index of contents.
Science
- Trattato della Trigonometria Piana – The work bears the subtitle: Con un breve saggio della Geometria Practica. The manuscript is made up of 212 folios, and written in Italian. The content is divided in Explications, Definitions, and Propositions. The work is basically about flat triangles as distinguishable from spherical triangles.
- Vulgaris Arithmeticæ Elementaris Theoria – This manuscript in Latin is made up of 58 folios, and divided into subtitles. Demarco focuses respectively on algebra, numerics, addition, and other arithmetic functions. An effort seems to have been made to make such an abstract subject understandable by non-professionals.
- Traité de Physique – Notes in French of a course given by Demarco at the University of Montpellier while terminating his studies there. The content is divided in Subtitles and Sections. Of course, it deals with various aspects of the physical constitution of human beings.
Other dated manuscripts
Medical
- De Tumoribus Humoralibus
- Tractatus De Morbis Pectoris
- De Morbis Abdominis
- De Voce Sana et Morbosa
- Tractatus in moltiplicis Vene Sectionis
- Del Fegato e De Polmone
- Commentarius in Sylvam
- De Restenosis
- De Febribus Acutis
- Tractatus de Multiplicis Venæ Sectionis
- De Hydrope
- Dell’Osteologia
- De Angiologia
- De Secretione
- Observationes de Morbis Cognoscitivæ Curandisque
- Historiæ Morborum
- Nevrologiæ Compendium
- De Integumentis
- Tractatus de Voce Sana et Morbosa
- Therapeutica Nosologia Cutanea
- De Myologia
- Tractatus Nosologia Vocalis
- Materies Medica
Physics
- De Aere
- Breve Compendio dell’Idrostatica
- Trattato de Fonti e Machine Adrostiche
Other undated manuscripts
Medical
- Dissertatio Academico De Febre
- Materia Medica
- De Fria Rerrevea et Acrimonatis
- De Balvicis
- Riflessioni sopra la relazione del Ritrovamento Dell’uova di chiocciola di A.F.M.
- Critica contra Novum ductum Medullæ Spinalis
- Adnotamenta in Boerhaave
- Actuaria pro animadversionibus in auctoritatem Auglum et Sylva
- Prælectiones Medicæ
Religious
- Esercizi di Pietà per tutti i giorni dell’anno
Appreciation
As seen above, the larger part of Demarco's works are still in manuscript form, and this makes them impossible to be studied. Though the outlines of some of his work are generally identified and acknowledged, the greater number of his compositions remain unfamiliar and shrouded in obscurity.
With regard to philosophy in particular, a systematic and critical study of Demarco is still to be done. In general, it cannot be said that his philosophy is known at all, not even in general. This must necessarily entail arduous of transliteration and translation which might well be daunting. Nevertheless, it seems that Demarco certainly merits such attention and consideration.
Dated works in chronological order
- 1933 – De Aere
- 1741 – De Tumoribus Humoralibus
- 1742 – Trattato della Trigonometria Piana
- 1742 – Breve Compendio dell’Idrostatica
- c. 1742 – Tractatus de Rabie
- c. 1742 – Vulgaris Arithmeticæ Elementaris Theoria
- c. 1742 – Trattato de Fonti e Machine Adrostiche
- 1743 – Dissertatio Physiologica de Respiratione, ejusque Uso Primario
- 1745 – Tractatus De Morbis Pectoris
- 1745 – De Morbis Abdominis
- 1745 – Traité de Physique
- 1747 – De Voce Sana et Morbosa
- 1747 – Tractatus in moltiplicis Vene Sectionis
- 1747 – Del Fegato e De Polmone
- 1748 – Tractatus Mechanicus de Non Naturalibus
- 1748–60 – Commentarius in Sylvam
- c. 1750 – Delle Torture
- 1754 – Epistola Dedicatoria
- 1755 – De Restenosis
- 1756 – De Febribus Acutis
- 1756 – Tractatus de Multiplicis Venæ Sectionis
- 1759 – De Hydrope
- 1759 – De Lana
- c. 1760 – De Logica
- c. 1760 – Varia
- 1760 – Atrium in Universam Physicam Experimentalem
- 1760 – De Chocholata
- 1763 – Generalis Philosophiæ Atrium
- 1763–87 – Fasti: Morborum Melitensis
- 1764 – Dell’Osteologia
- 1764 – De Angiologia
- 1764 – De Secretione
- 1764 – Observationes de Morbis Cognoscitivæ Curandisque
- 1764 – Tractatus de Affectione
- 1765 – Physiologie Cursus: Anatomico – meccanico – experimentalis
- 1767 – Historiæ Morborum
- 1768 – Nevrologiæ Compendium
- 1768 – De Integumentis
- 1773 – Mannarino
- 1774 – Patologicus Brevis Cursus
- 1776 – Tractatus de Voce Sana et Morbosa
- 1780 – Therapeutica Nosologia Cutanea
- 1781 – De Myologia
- 1781 – Tractatus Nosologia Vocalis
- 1789 – Materies Medica