310 The American Naturalist. [Mareh, 
devices for avoiding inclusion of air bubbles in mounts; (d) balsam- 
paraffin as a ring varnish. 
O. S. Strong: On the components of cranial nerves of Amphibia. 
In the seventh a dorsal root was shown to pass off into branches rep- 
resenting ophthalmicus superficialis, facialis and buccalis of fishes, and 
innervating the lateral sense organs of the head. In vagus, a root of 
similar internal origin passes into the R. laterales, innervating the 
lateral sense organs of the body. Another component of the facialisis 
the fasciculus communis of fishes. This passes off into the palatinus 
and mandibularis internus, innervating the mucous epithelium of the 
oral cavity ; while in the glosso-pharyngeus and vagus, similar com- 
ponents divided from this fasciculus innervate in like manner portions 
of the alimentary canal and its appendages. The relation of the results 
to segmentation of head was discussed. 
N. L. Britton: A Review of the N. A. species of Lespedeza, with 
comments on the eleven native species, shown to be divisible into two 
groups, (a) those producing both petalous and apetalous flowers, and 
(b) those in which no petalous flowers are developed. Of the two 
naturalized species, one in S. E. part of U. S., L. striata (Thunb.) H 
and A, is a native of E. Asia, appearing (about 1845) in Georgia. 
Basurorp Dean, Ree. Secy. of Section. 
Proceedings of the New Mexico Society for the Advance- 
ment of Science.—Meeting of November 2, 1892, at La Cruces.— 
(No. 1.) Professor Townsend read a paper entitled “A partial comparison 
of the insect fauna of the Grand Cafion with that of the San Francisco 
Mountain in Arizona.” The paper discussed briefly the conditions 
which exert an influence on the vertical range of species, and then gave 
some exact data on the topographical features of the above region. 
Dr. Merriam’s life-zones of the San Francisco Mountains were re-stated, 
and the following provisional zones were offered for the Grand Cafion 
(from top of south rim at Hance’s, 7500 ft., to Colorado River, 2500 ft.) : 
Canadian or balsam fir zone (only on north or northeast exposure). 
Neutral or pine zone (only on north or northeast exposure). 
Piñon or cedar gst Bot te to 7500 ft. (top of south or southwest 
exposure). 
Sub-desert zone—4500 to 6000 ft. 
Gila zone—2500 to 4500 ft. 
The insect fauna was considered in three sections—that peculiar to 
the cafion, that peculiar to the mountain, and that common to both. 
divisions were compared with each other, and also with the fauna 
