no THE POPULAR SCIENCE MONTHLY. 



issued a " Descriptive and Illustrated Catalogue of the Physiological 

 Series of Comparative Anatomy," in sections, from 1833 to 1840 ; the 

 " Paleontological Catalogue," in 1845 and 1854 ; and the " Catalogue 

 of Recent Osteology," in which he described 5,906 specimens, in 

 1854. The work of cataloguing and examining for the catalogues 

 was accompanied with constant additions to the specimens and conse- 

 quent growth of the collection till, in 1856, when Owen's connection 

 with the work ceased, they filled ten times the space that had been 

 sufficient for them in 1828. 



An important corollary to these labors was the editorial work he 

 performed upon the writings of Hunter, the illusti'ious founder of the 

 collection. In 1837 he published a new edition of Hunter's "Animal 

 Economy," to which he added all the known published papers of the 

 author ; and he gave, in the preface, the first descriptive narrative 

 of Hunter's real discoveries. He afterward published two volumes 

 of Hunter's " Essays and Observations on Natural History, Anatomy, 

 etc.," which had been transcribed by Clift before Home destroyed 

 the originals, and had been deposited by him, with an autographic 

 authentication, in Owen's hands. The preface to this work embodied 

 a showing of the advanced views which Hunter entertained in geology 

 and paleontology. 



In 1834 Dr. Owen was appointed to the newly-founded chair of 

 Comparative Anatomy in St. Bartholomew's Hospital, and two years 

 afterward was made the first Hunterian Professor in the Royal Col- 

 lege of Surgeons. He filled this position for twenty years, after 

 which, in 1856, he was appointed Superintendent of the Natural His- 

 tory Department of the British Museum. 



The history of the whole of the earlier thirty years of Professor 

 Owen's active life is illustrated by the records of his anatomical and 

 zoological investigations. His earliest published paper was a demon- 

 stration of the manner in which an aneurism had been obliterated by 

 Dr. Stevens, of Santa Cruz, by means of a ligature of the internal 

 iliac artery, which was communicated to the Medical Society of St. 

 Bartholomew's Hospital in 1830. Soon after becoming connected with 

 the Hunterian Museum, he obtained a specimen of the Nautilus pom- 

 pilius, or pearly nautilus, an animal then almost unknown, on which 

 he published a memoir, with drawings by himself, foreshadowing the 

 advanced views on structure and affinities which characterize his sci- 

 entific system. In 1835 he published the first account of the Trichina 

 spiralis, that remarkable nematoid worm of swine and men which has 

 since become famous as a cause of disease. 



Professor Owen's earliest communications to the Royal Society 

 were papers on the generation of the ornithorhyncus and the kanga- 

 roo. In numerous later memoirs he discussed the structure and affin- 

 ities of the higher quadrumana, and proposed the use of the brain- 

 structure as an important element of classification. Between 1840 ami 



