EDITORIAL. 



Neuronymic Progress in America. 



The American Neurological Association, at its recent ses- 

 sion in Philadelphia, took a step at once sure and decided toward 

 the simplification and unification of neurologic nomenclature. 

 The Committee on Neuronymy (Drs. H. H. Donaldson, L. 

 C. Gray, C. K. Mills, E. C. Seguin, E. C. Spitzka, and B. G. 

 Wilder, chairman) presented a report which was adopted 

 iinanimotisly by the Association, June 6. To give this impor- 

 tant measure as wide a circulation as possible we publish the 

 report of the committee as furnished us by its chairman. 



The first five sections are substantially identical with re- 

 ports that were adopted unanimously by the Association of 

 American Anatomists in 1889 and by the American Association 

 for the Advancement of Science in 1890 and 1892. The re- 

 commendations are as follows : 



1. That the adjectives dorsal and ventral be employed 

 in place of posterior and anterior as commonly used in human 

 anatomy, and in place of upper and lozver as sometimes used in 

 comparative anatomy. 



2. That the cornua of the spinal cord, and the spinal 

 nerve-roots, be designated as dorsal and ventral rather than 

 as posterior and anterior. 



3. That the costiferous vertebrae be called thoracic rather 

 than dorsal. 



4. That, other things being equal, mononyms (single-word 

 terms) be preferred to polyonyuis (terms consisting of two or 

 more words). 



5. That the hippocampus jni)ior be called calcar ; the 

 hippocampus major, hippocampus; the pons Varolii, pons; the 

 insula Reilii, insula ; pia mater and dura mater, respectively pia 

 and DURA. 



