The America: an Naturalist. [September, 
SCIENTIFIC NEWS. 
Walker Prizes in Natural History.—Two prizes are annually 
offered by the Böston Society of Natural History for the best memoirs 
written in the English language on the subjects given below. For 
the best memoir presented a prize of sixty dollars may be awarded ; if, 
however, the memoir be one of marked merit, the amount may be in- 
creased to one hundred dollars, at the discretion of the committee. 
i the next memoir, a prize not exceeding fifty dollars may be 
arded. Prizes will not be awarded unless the memoirs presented are. 
of adequate merit. The competition for these prizes are not restricted, 
but open to all. Each memoir must be accompanied by a sealed - 
envelope enclosing the author's name and superscribed with a motto | 
. corresponding to one borne by the manuscript, and must be in the 
- hands of the Secretary on or before April Ist of the year for which 
.. the prize is offered. 
. Subjects for 1895 :—(1) A study of the “ Fall line" in New J ersey; 
P D A study of the Devonian formation of the Ohio basin; (3) Re- 
JN lations of the order nat uA (4) Experimental investigations - 
. in morphology or embryo i 
e | Subjects. for 1896: :—(1) ed study of the area of schistose or foliated 
Qu rocks i in the eastern United States ; (2) A study of the development of — 
= river valleys i in some considerable area of folded or faulted Appala- 
-chian ure in- Pennsylvania, Virginia or Tennessee; (3) An |. 
ae experimental. study of the effects of sis fe fertilization in the case of 
. some plant of short cycle; (4) Contributions to our knowledge of 
the general exeun ie or inq dde physiology of any animal, ex 
