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      VICTOR-AUGUSTE GAUTHIER 
      
      1837-1911. 
      
      Obituary 
      
       
      by J. Lambert 
      
       
      (Notice presented at the annual general meeting on 6 June 1911) 
      
       
       
     The friend whose memory I have just recalled to the 
      Geological Society of France is perhaps not well known to our younger 
      colleagues, because for the last eight years he has lived completely apart 
      from us. Stricken by a cruel disease, Victor Gauthier died on 20 February 
      last. 
  
      
      Born in Tonnerre (Yonne) on 5 March 1837, the fourth child 
      of a modest winegrower, Victor-Auguste Gauthier gradually rose through his 
      intelligence and his work and, as a son of his works, he had acquired, 
      twenty years ago, a deserved scientific reputation. He felt an attraction 
      for the natural sciences which study further developed, but called by his 
      functions to spend most of his life in the provinces, he had understood 
      early on the need to specialise and, soon giving up work on general 
      palaeontology, he devoted himself exclusively to the study of Echinids. He 
      became the correspondent, then the collaborator and friend of Cotteau, 
      while, through his marriage, family relations established a sincere and 
      lasting friendship between Peron and himself. 
  
      
      He was brought up at the college of Tonnerre, then 
      successively as a tutor at the colleges of Sens and Orléans, soon 
      graduated in literature and, after a brilliant competition, was awarded 
      the agrégé de grammaire, and we see him as a teacher at the colleges of 
      Pau, Puy, Moulins, and finally, on 7 January 1864, in Marseille. It is in 
      this city that he devoted himself for nineteen years to the study of 
      Echinids and collected an important series of species from Provence. 
  
      
      His first works were collaborations. He began by describing 
      two species, which were not figured and of which only one could be 
      maintained, in the "Essai de Géologie et de Paléontologie Aveyronnaise" by 
      Reynès, then, with Peron and under the direction of Cotteau, he undertook 
      the "Description des Echinides fossiles de l'Algérie", a considerable work, 
      The first two fascicles of which were published first in the Annales des 
      Sciences géologiques (1873) and in the Bibliothèque des Hautes études 
      (1875), but were later reworked (1883-84) to form part of the first volume 
      of this great work, which is a particular credit to French science. For 
      eighteen years, from 1873 to 1891, Gauthier worked tirelessly on the 
      descriptions of these Echinids and enabled us to become familiar with this 
      very interesting part of the Algerian fossil fauna. It is important to 
      recall what was, in the common work, the part of each one. Peron provided 
      most of the material, wrote the stratigraphic notes and collaborated with 
      Gauthier on some species descriptions. Cotteau had kept the high direction 
      and his opinion predominated in the delicate questions of establishment or 
      interpretation of genera and species as in those of general 
      classification. Gauthier deserves the credit for the detailed study of all 
      these species and their careful description. 
  
      
      As the publication of this great work progressed, the 
      author's knowledge became more extensive and he ventured to give us alone 
      a few short notes, the first on the Echinids living in the vicinity of 
      Marseilles, another very interesting one on the Echinids of the 
      Bouches-du-Rhône department, a prodrome of a more important work which has 
      not been published; But, as a confidant of the thoughts of my learned 
      friend and purchaser of his beautiful collection, I hope to be able one 
      day to complete his work on this point, and to include the rather numerous 
      species whose names he has only indicated. 
  
      
      In the course of this work Gauthier was appointed, on 7 
      August 1883, professor at the Lycée Michelet, in Vanves, and was soon 
      promoted to the rank of Officer of Public Instruction. He has since 
      published various notes in our Bulletin, notably from 1898 to 1903 his 
      "Contributions à l'étude des Echinides fossiles". From 1888 to 1895, he 
      had published in the Annuaire géologique universel a series of articles in 
      which he gave precious analyses of the main works published at that time 
      on Echinoderms. Then in 1889 he published his "Echinides fossiles de la 
      Tunisie", an important work, for which his studies on the Echinides of 
      Algeria had prepared him marvellously.En collaboration avec Cotteau d'abord 
      (1895), puis seul (1902),   
      
      Gauthier described the curious Echinids brought back from 
      Persia by J. de Morgan. In collaboration with our colleague the engineer 
      R. Fourtau, he published, in 1899, the Revision of the Fossil Echinids of 
      Egypt, soon followed by two notes on the same subject, and had thus well 
      deserved the honour of being appointed member of the Egyptian Institute. 
  
      
      The work of Gauthier, without reaching the extent of that 
      of Cotteau or Loriol, was thus still important. 
  
      
      Among the most interesting types of Echinids that Gauthier 
      has made known to us, we must mention : Galeropygus Jolyi from the 
      Cenomanian of the Charentes, Noetlingia Monteili from the Cretaceous of 
      Central Africa, Entomaster Rousseli from the Senonian of Algeria, 
      Rachiosoma Peroni and Lambertiaster Auberti from the Cretaceous of Tunisia, 
      Megapneustes grandis from the Eocene of Egypt, Vologesia Tataosi, Stenonia 
      Morgani, Opissaster Douvillei, Iraniaster Douvillei from the Senonian of 
      Louristan and especially Cionobrissus Morgani from the Upper Eocene of 
      Persia. 
  
      
      As a naturalist, Gauthier mainly expressed his opinions in 
      his shortest and most recent notes, because in his major works he was 
      especially concerned with giving us very complete, detailed and precise 
      descriptions of all the species he studied. Each of his descriptions is 
      followed by a conscientious examination of the relations and differences 
      of the form studied with neighbouring species. 
  
      
      With regard to Megapneustes Lorioli, Gauthier rightly 
      remarked that the taxonomic value of the facioles was variable, excellent 
      in recent species, when the organ is definitively fixed, and much less 
      certain in the first forms with unstable fascioles of the Cretaceous and 
      Eocene. He attaches some importance to the presence of tubercles in the 
      interporal zones of the petals of some Spatangoida. After denying the 
      generic value of the presence of the secondary tubercle rows in the 
      Glyphostomata, he joined Pomel's contrary view to justify his genus 
      Orthechinus. His work on apex modifications in Hemiaster is of 
      considerable interest and ruined Pomel's artificial classification of 
      Spatangoida into Spatangides and Progonasterides. In his work in 
      collaboration with Cotteau, it is rather difficult to separate his 
      personal views from those of the Master; these views appear more clearly 
      in his critical note on the classification of the Echnidae by Pomel, a 
      sober, impartial criticism, marked by common sense, one of the best that 
      has been published and which is still reread today with fruit. He shows 
      himself to be a convinced disciple of scientific traditionalism. Without 
      denying the importance of the masticatory apparatus in Echinids, he 
      prefers, in the order of the gradation of taxonomic characters, those 
      derived from the relations of the periproct and the apex, or from the 
      shape of the petals. And yet the last at least is not more absolute than 
      that invoked by Pomel, for, if one can hesitate on the position of certain 
      Conulus or Conoclypeus among the Gnathostomes, one will remain just as 
      hesitant on the true character of the petals of Galeropygus Peroni or 
      Clypeus Constantini. This search for the absolute in nomenclature, which 
      seduces the best minds, is in reality rather disappointing, for in nature 
      the richness of forms is such that the study of an isolated character 
      leads fatally to the observation of progressive degradations and apparent 
      links between the principal families. In such a way that the scientist who 
      pursues this research on the study of a supposedly first-order character 
      is insensibly led by a progressive evolution of his ideas to the 
      diametrically opposed theories of transformism. Gauthier did not escape 
      this and he, who then denied any relationship between the Palechinids and 
      the Nearechinids, we shall see him, ten years later, searching everywhere 
      for the form of passage from one type to another and imagining that he had 
      found at least one in his Proholaster Auberti. 
      
      Gauthier appears to us above all as a powerful preparer of 
      material, a tireless describer of new species and forms, rarely concerned 
      with lifting the veil that obscures the question of origins. If he tackles 
      this question in his echinoids of Persia, it is very timidly and in a way 
      incidentally, on the occasion of the Iraniaster genus, stating as an axiom 
      this thought that a genus cannot appear all of a sudden, completely 
      isolated from the others. This is an opinion that stems more from faith in 
      a theory than from materially observed facts. In this order of ideas, 
      Gauthier thought it necessary to point out what he calls the affinities of 
      Iraniaster with Stenonia, while elsewhere he makes Schizaster descend from 
      Opissaster, Bothriolampas from Bothriopygus, Pliolampas from Echinanthus. 
      Let us leave him the responsibility for these opinions, but let us note 
      that his science and his talent were mainly manifested in the observation 
      of known species, the creation of new species and their description. In 
      this respect, he has acquired a just notoriety and his work, intact after 
      many years, will be imposed on future generations as it was on his 
      contemporaries. 
  
      
      Munier-Chalmas used to say that the value of a naturalist 
      can be recognized by the skill of the preparer. Nothing was more true as 
      far as Gauthier was concerned, one must see in his beautiful collection 
      with what care and what skill he knew how to free an Echinid from the most 
      rebellious gangues. Then one understands better the excellence of his 
      descriptions which are at the same time so complete, so exact, sober and 
      elegant. 
  
      
      A passionate naturalist, a tireless worker, his depth of 
      science was matched only by the extent of his modesty. In the midst of his 
      collections and books, devoting his leisure time towards the end of his 
      career to his favourite studies, surrounded by the affection of a few 
      friends and the tenderness of a devoted companion, he seemed destined to 
      live out his days happily in the retirement he had chosen for himself in 
      Sens, He seemed to be able to contribute more than any other to the 
      progress of Echinology and, without striving for honours, to attain an 
      indisputable scientific fame, when illness disrupted his work, his life 
      and even his feelings for those who had been dearest to him, so that we 
      had, in a way, the pain of losing him twice. 
      
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      LIST OF SCIENTIFIC 
      PUBLICATIONS OF 
      
      
      Victor Gauthier 
      
        
      
        
      
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