560 RUDOLPH ALBERT VON KOLLIKER, M. D. 



visits had a scientific object. Naples and Sicily were visited in 1842. 

 In 1845 he first visited London, and on his way stopped at liouvain 

 to make the acquaintance of Schwann and Van Beneden. In Lon- 

 don he made the acquaintance of Sharpey, who was then professor 

 in University College. A close friendship sprang up between them, 

 and Kolliker had the highest regard for Sharpey, who was greatly 

 interested in the young histologist, who demonstrated to Sharpey the 

 termination of nerves in Pacinian corpuscles. He also became the 

 friend of Owen, Bowman, Todd, Kiernan, Wharton Jones, and Ed. 

 Forbes. Spain was visited in 1849, Holland, England, and Scotland 

 in 1850. To London he was accompanied by Czermak. In Edin- 

 burgh he was the guest of Goodsir and Simpson. 



In his letters he gives a charming account of the Edinburgh profes- 

 sors of those chiys. He says he knows only three anatomists and 

 physiologists in all England who do not practice medicine for a pro- 

 fession, namely, Owen, Sharpey, and Grant. He placed Sharpey and 

 Bowman at the head of English microscopists. When he and Czer- 

 mak were the guests of Goodsir in Edinburgh, Goodsir gave him Tom 

 Jones to read in bed. When he was tired he got up and blew out the 

 gas, but fortunately he did not fall asleep just at once. The smell of 

 the gas aroused him, else the career of the young histologist might 

 probably have been short. He was present at the meeting of the 

 British Association in Glasgow in 1855 as the guest of Allen Thom- 

 son, and on that occasion read several papers. He made another 

 visit to Scotland in 1857 and again in 1861, He delivered the Croon- 

 ian lecture in 1862. He visited Manchester to see the histological 

 work of the late Professor Williamson on fossil plants. In 1887 he 

 visited Pavia to study under Golgi his method of preparing sections 

 of the nervous system, though he was then already 70 years of age. 

 He published about twenty papers on the results he obtained on the 

 nervous system by the Golgi and Cajal methods. 



To give a detailed account of Kolliker's work would be to write a 

 treatise on comparative histology. His Gewebelehre was published 

 from 1850 to 1854. His Handbuch der Gewebelehre was first pub- 

 lished in 1852 and reached its sixth edition in 1893-1899. The Man- 

 ual of Human Histology was translated by Busk and Huxley for the- 

 Sydenham Society in 1853-54. Even as late as 1851 Virchow held to 

 Schwann's doctrine of " free cell formation.*' Before this Kolliker 

 had rejected this theory. His studies on the eggs of cephalopods had 

 shown him the untenable nature of Schwann's views. He attached 

 great imj^ortance to the stiuly of protozoa and the simplest animals. 



Kolliker published but little on ordinary naked-eye anatomy. His 

 work lay chiefly in microscopical studies. He was an excellent lec- 

 turer, good draftsman, and a most methodical teacher. For eighteen 



