1 882. 167 Trans. N. V. Ac. Scz. 



sloth, the jumping- kangaroo, the swinging monkey and the swift run- 

 ning" quadrupeds. 



The arms and legs of the running mammals are highly developed, 

 and the mechanical construction and action of the parts are beautiful 

 and wonderful. The muscles of the body are largely grouped about 

 the shoulders and hips. 



The arms are usually straight, but in the swifter animals, as the deer 

 and horse, the legs are considerably bent. In the elephant the legs are 

 straight columns supporting the huge body. 



The normal number of phalanges is five, but there is great vari- 

 ation. The hoofed quadrupeds may have three, as the rhinoceros : 

 two, as the ruminants: or one, as the horse. Some mammals walk 

 on the whole sole of the foot, as the bear and man, termed planti- 

 grade ; others on the toes, as the cat and dog, digitigrade ; while the 

 foot of the seal is termed pinnigrade, and the hoofed quadrupeds, un- 

 gulate. 



May 15, 1882. 

 Lecture Evening. 



The President, Dr. J. S. Newberry, in the Chair. 



The hall was filled by a large audience. 



The closing lecture of the monthly course for the season was 

 delivered by Prof. H. Carrington Bolton, Ph. D., of Trinity 

 College, Hartford, Conn., on the subject of 



glaciers. 



The lecturer treated of the chief glacier regions, especially those of 

 the Alps, of the various physical phenomena presented by them, of the 

 several theories of ice motion, and of personal experiences in travelling 

 among glaciers, illustrating the whole with a varied and striking series 

 of photographic lantern views. 



May 22, 1882. 

 Section of Geology. 



The President, Dr. J. S. Newberry, in the Chair. 



Twenty-two persons present. 



Prof. O. P. Hubbard, exhibited a pectiliar organic salt, malate 

 (or, perhaps, bi-malate) of lime, from Williamstown, Vt., de- 

 rived from the sugar-maple. In the manufacture of the sugar. 



