213 



join the brachialis anticus, and thus becomes a flexor of tlie ulna ; 

 in the lower mammals the deltoid goes still farther down, and acts 

 powerfully in flexiii^: the forearm ; in this respect the gorilla is 

 lower than the cliimpanzee. The pectoralis minor consists of two 

 portions, one going to the coracoid process and the other joining the 

 tendon of the biceps ; the subclavius goes to the coracoid process in- 

 stead of the clavicle, a condition which sometimes exists as an anom- 

 aly in man. In the latissimus dorsi the gorilla is higher than the 

 chimpanzee, as in the latter there is a slip which extends to the 

 end of the ulna, which was not found in the gorilla he examined ; 

 the serratus maynus pulls the scapula down. ^Fhe gluteus maxi- 

 mus is smaller than the medius, and is inserted into the outer 

 condyle as well as the upper part of the femur ; the flexors of the 

 leg are attached one third of the way down the limb, so that the 

 legs cannot be entirely straightened. Most of the muscles of the 

 human hand are found in the gorilla ; but the thumb is supplied 

 by a slip from the common flexor, having no independent long 

 flexor. There are two additional adductors of the thigh, which 

 carry this part much more powerfully inward in the act of climb- 

 ing. 



Messrs. Theodore N. Gill, of Brooklyn, N. Y., and A. 

 S. Packard, Jr., of Branswick, Me., were chosen Corre- 

 sponding Members ; and Dr. D. D. Slade, Samuel Wells, 

 Jr., Rev. R. C. Waterston, and Edward I. Browne, of 

 Boston, Resident Members. 



January 18, 1860. 



Dr. C. T. Jackson, Vice-President, in the Chair. 



Mr. Scudder, Curator of Entomology, presented the 

 following paper, entitled 



A CHRONOLOGICAL INDEX TO THE ENTOMOLOGICAL WRITINGS 

 OF THADDEUS WILLIAM HARRIS, M. D. 



It is supposed that Dr. Harris, shortly previous to his decease, 

 was preparing a list of his own writings ; yet, though search has 



