86 Transactions Tennessee Academy of Science 



southern polar cap generally masked by clouds over the entire re- 

 gion. The dark blue band around the melting northern cap and its 

 probable significance. Illustrated with lantern slides. 



Jupiter and the changes in its northern equatorial belt as com- 

 pared with the same latitudes in 1912-13. The drift of light and 

 dark spots, and what may be the cause of their peculiar motion. 

 Illustrated with lantern slides. 



November 27, 1914. 



GALLS AND GALL-PRODUCING INSECTS. 



BY ROBERT S. WALKER. 



(Abstract.) 



Illustrates how galls are formed on Spanish oak, black jack, and 

 blackberry canes. There are many gall-producing insects in Ten- 

 nessee, working on various oaks, briars, and weeds. Covers writer's 

 experience in rearing gall-producing insects for the last five years. 

 Shows how galls are produced by a stimulus which is deposited by 

 insect in young growing part of tree or plant, which causes an ab- 

 normal growth, much like a cancer on human body. The purpose 

 of the gall, however, is to prepare a place for rearing the young 

 insect. (Published in "Country Life in America," September, 1916.) 



November 27, 1914. 



SOME PERSONAL REMINISCENCES OF THE EARLY HISTORY 

 OF THE TELEPHONE. 



BY BROWN AYRES, UNIVERSITY OF TENNESSEE. 



(Abstract.) 

 Having undertaken some original investigations in telephony 

 about the lime of the invention of the instrument by Alexander 

 Graham Bell, the author was led to form an acquaintance with Pro- 

 fessor Bell at an early stage of his invention, and to have had some 

 pleasing personal rehitions with him at that time. He was also, at 

 the same time, a frequent visitor at the laboratory of Mr. Edison, 



