November 4, 1904.] 



SCIENCE. 



601 



1892 to 1894 he held a professorship at 

 Denison University. Here he continued 

 his zoological studies, but in connection 

 with his class work became interested in 

 the Waverly limestones and shales of Ohio. 

 He devoted himself to the study of these 

 for several years with characteristic in- 

 tensity, publishing most of his results and 

 those of his students in the Bulletin of the 

 Scientific Laboratories of Denison Univer- 

 sity, which he founded in 1885. Prom the 

 first his teaching was extraordinarily suc- 

 cessful, particularly in kindling enthusiasm 

 and love of research. This was due partly 

 to his attractive personality, partly to his 

 fearless originality, but chiefly to his philo- 

 sophic insight and his ability to open up 

 his deepest thinking even to elementary 

 pupils. And so a very large proportion of 

 his students have themselves achieved suc- 

 cess as original workers in science. 



During his last ten years, spent in New 

 Mexico on account of the breakdown in 

 health which forced him to leaVe Ohio, he 

 resumed his geological studies, publishing 

 several important articles on the geology 

 of that territory. 



From 1889 to 1891 he was professor of 

 zoology in the University of Cincinnati. 

 Here his geological labors were interrupted 

 and he entered with great energy into a 

 series of neurological investigations which 

 he had long before planned to undertake. 

 He founded the Journal of Comparative 

 Neurology and Psychology, which (now 

 under the editorship of his brother, C. 

 Judson Herrick) has made a permanent 

 and important place for itself. Beginning 

 his neurological work upon the brain of 

 rodents, he accumulated a large mass of 

 data which he found almost incapable of 

 correlation. Believing that the key could 

 be found only in lower primitive types he 

 began to examine a large number of such 

 in a very thorough manner. His results 

 were published rapidly and with little at- 



tempt at correlation. These papers were 

 illustrated by large numbers of beautiful 

 plates which his rapid and skillful use of 

 the pencil made possible. His plan was to 

 secure a large amount of accurate data 

 while his eyesight was still perfect, and 

 later review the whole field of vertebrate 

 neurology, using his own observations as a 

 nucleus around which to build a unified 

 system by further research at critical 

 points. In 1892, after some months of 

 study abroad, he returned to Denison and 

 continued his neurological work with great 

 energy, until in December 1893 failing 

 health compelled him to go to New Mexico. 

 He soon recovered sufficiently to resume 

 work, but local conditions were such that 

 his attention was again directed mainly to 

 geological problems. The work of cor- 

 relating his neurological studies was left 

 somewhat incomplete, but it is probable 

 that this may be accomplished through the 

 labors of his brain-children. 



For four years he did a useful work as 

 president of the University of New Mexico, 

 here as everywhere stimulating young men 

 to undertake research by the influence of 

 his own example. In these later years we 

 see the successful struggle of a noble soul 

 dominated by a great purpose over the 

 discouragements of physical weakness and 

 suffering. A. D. Cole. 



SCIENTIFIC BOOKS. 

 The Harriman Alaska Expedition. Vols. 

 VIII. and IX., Insects. New York, Double- 

 day, Page & Co. 1904. 



Volumes VIII. and IX. of the Harriman 

 Alaska Expedition, published in cooperation 

 with the Washington Academy of Sciences 

 and dealing with the subject of insects, have 

 just been issued, and represent the most nota- 

 ble contribution to the literature of entomol- 

 ogy of the year, and will rank among the most 

 important of the American contributions to 

 this subject. The material discussed in these 

 two volumes was substantially all of it col- 



