Recent Literature. 85 
iii, 2, 219-228. The collection upon which this paper is based was 
- received from Mr. George B. Sennett and contained two new forms 
of which descriptions are given: Scalops argentatus texanus from 
Presidio County, Texas, and Dzpodops sennetti from near Browns- 
~ ville, Texas. Thirty-one species are recorded with annotations and 
critical remarks. W. E. B. 
A Marine Reservation. Forest and Stream, xxxvi, No. 14. The 
commendable plan of reserving certain islands in the Pacific Ocean 
and Behring Sea as preserves upon which marine mammals may 
resort without molestation and thereby be kept from extirmination is 
presented in an editorial and a letter from Prof. Langley, Secretary 
of the Smithsonian Instution to Hon. John W. Noble, Secretary 
of the Interior. Briefly expressed, it is proposed to establish a 
northern station on Amak Island in Behring Sea for the refuge of 
the walrus. (Odobenus obesus) and sea otter ( Enhydra marina), 
also a southern station on the Farallon Islands for the northern sea 
lion ( Eumatopias stelleri) and California sea lion (Zalophus califor- 
nianus ). W. E. B. 
On the Periods occupied by Birds in the Incubation of their Eggs. 
By Wixiram Evans, F. R. S. E. ° Ibis, Jan., 1891, p. 52. It is 
partly compiled from the works and observations of others and 
partly the results of his own careful watching of nests and by the 
artificial means of a self-regulating incubator; eggs were also hatched 
under the domestic hen, dove and canary, according to the size of 
the eggs. The temperature best suited for hatching the majority of 
birds in the incubator was found to be 102.5° Fahr. The author 
says: ‘‘ Probably no point in the life-histories of the different species 
of birds has received less attention than the period of incubation, a 
circumstance all the more surprising when we consider the import- 
ance of the subject and the great activity which has been manifested 
during recent years in the elucidation of ornithological questions.’’ 
WwW. E: B. 
The plates accompanying the January number of the Ibis are of 
| Aethopyga latouchii Slater, 6, @ , anew species from south-eastern 
China; Cryptolopha nigrorum Moseley and Abrornis olivacea Moseley © 
two new flycatchers from the Philippines, the third plate represent- 
nang’ 6 5: 2 Loriculus bonapartet De Souancé from the Sooloo Islands. 
Notes on the Classification of the Pigeons. By R. W. SHUFELDT. 
