48 ENTOMOLOGICAL NEWS [Jan., '15 



This latter was Dr. Minot's most important piece of entomo- 

 logical work, and we know of at least one laboratory in which 

 it is still used as a guide and book of reference. A summary 

 of some of these histological investigations saw the light also 

 in The American Naturalist for June, 1878, as A Lesson in 

 Comparative Histology. 



To the Fourth Report of the Commission, in conjunction 

 with Edward Burgess, he contributed an account of the Ana- 

 tomy of Aletia xylina (1884), larva and imago, prepared at 

 the request of Prof. C. V. Riley. A paper in German, Zur 

 Kenntniss dcr Insectenhaut (Archiv. f. mikros. Anatomic 

 1886), also dealt with Lepidoptera, especially their larvae, and 

 contains the interesting conclusion : "even a piece of cuticle 

 suffices for the identification of the species." 



This appears to have ended Dr. Minot's entomological 

 career. He entered the service of Harvard Medical School, 

 where he remained for the rest of his life, first as Lecturer on 

 Embryology and Instructor in oral pathology and surgery 

 (1880-3), then as Instructor in Histology and Embryology 

 (1883-7), Assistant Professor (1887-92), Professor (1892- 

 1906), and finally as Professor of Comparative Anatomy from 

 1906 to his death. His attention became chiefly directed to 

 the Vertebrates, as the titles of his books show : Human 

 Embryology (1892), Bibliography of Vertebrate Embryology 

 (1893), A Laboratory Textbook of Embryology (1903), or to 

 more general topics like Age, Grozvth and Death (1908), and 

 Modern Problems of Biology (1913), the latter his lectures 

 as exchange professor at the University of Jena in 191 2. As 

 an inventor of useful forms of automatic microtomes during 

 this later, "vertebrate," period of his career, he aided ento- 

 mological investigators quite as much as he helped others. 

 From 1897 on he was President of the Boston Society which 

 had published his earliest papers, and in 1901 President of the 

 American Association for the Advancement of Science. 



P. P. C. 

 I < ■» ■ 



The News for December, 1914, was mailed at the Philadelphia Post 

 Office November 30, 1914. 



