xlii 



Obituary Notices. 



remember not only the intrinsic interest and value of the address, but also 

 the impressive and sympathetic manner in which it was delivered by the 

 good friend in whose house he passed some of the last days of his life. In 

 this address Minchin gave us his philosophical standpoint as regards the 

 origin of living organisms on the earth. He believed that the chromatin 

 represents the primary living substance, that in the organisms known as the 

 Chlamydozoa we have the nearest approach to the earliest organisms, that the 

 formation of an envelope or capsule round the primary chromatin particles 

 giving rise to the periplasm or cytoplasm of the cell, the increase in the 

 number and complexity of the chromatin granules, and the formation of a 

 definite nucleus were subsequent processes in the evolutionary cycle. These 

 and many other aspects of Cytology and Protozoology he treated with a 

 masterly hand, and the address is one which for style and evidence of a 

 cultured mind has rarely been excelled in the history of Section D. 



S. J. H. 



Captain J. W. JENKINSON, M.A., D.Sc* 



John Wilfred Jenkinson was born in 1871, and educated at Bradfield 

 College. In 1890 he came up to Oxford, having obtained a scholarship in 

 classics at Exeter College. His taste for natural history developed early. 

 Already, as a boy at school, he took a keen interest in botany, and several of 

 his finds are mentioned in Druce's 'Flora of Berkshire.' After taking his 

 degree at Oxford in the honour school of Litene Humaniores. he turned his 

 attention to the study of zoology, and went to work at University College, 

 London, under Prof. Weldon. On his return to Oxford he joined the 

 teaching staff of the Department of Comparative Anatomy in the University 

 Museum, obtained his doctor's degree in Science in 1905, and next year 

 was appointed University Lecturer in Comparative and Experimental 

 Embryology. The excellence of his work in research and in teaching was 

 recognised, and in 1909 his old college, Exeter, elected him to a Research 

 Fellowship. In 1905 he married Constance Stephenson, who survives him. 



An ardent patriot, Jenkinson became a member of the Oxford Volunteer 

 Training Corps as soon as the war broke out. Though over age he applied 

 for a commission, and joined the 12th Worcestershire Kegiment in January, 

 1915. He was promoted to a captaincy in April, and left for active service 

 in the Dardanelles on May 10, one of a draft of six officers from his 

 regiment, attached to the 2nd Eoyal Fusiliers. Hardly had he reached the 



* This and other obituary notices of distinguished men of science, not Fellows of the 

 Society, who have fallen in the "War, appear in pursuance of a resolution of Council. 



