402 



SCIENCE. 



[N. S. Vol. II. No. 39. 



rainic lakes which existed at two or three 

 points along the. southern shore of Lake 

 George and the end of Lake Champlain, 

 the drainage of Lake George in both direc- 

 tions after the ice had left its basin, and the 

 elevated gravel and sand terrace near 

 Saratoga. 



In a somewhat informal lecture Profes- 

 sor H. L. Fairchild, Eochester, N. Y., de- 

 scribed some interesting features in the sur- 

 face geology of the Genesee region, New 

 York. The lecture was illustrated by 

 numerous lantern slides, some of which 

 were especially instructive as showing in an 

 excellent manner the intimate structure of 

 the gravel and sand beds. These are 

 glacial till as well as stratified lacustrine 

 deposits. 



The papers read only by title were : 



Terminology proposed for the description 

 of the shell in Pelecypoda: by Professor A. 

 Hyatt, Boston, Mass. 



Russia in Europe: by Dr. Gardiner G. 

 Hubbard, Washington, D. C. 



Distribution of sharks in the Cretaceous • 

 by C. E. Eastman, Cambridge, Mass. 



The equatorial counter currents: by Pro- 

 fessor W. M. Davis, Cambridge, Mass. 



On Saturday, 31st August, the section 

 joined in the general excursion to Amherst 

 Northampton and South Hadley. The in- 

 terest for the section centered in Amherst, 

 of course, and there, under the guidance of 

 Professor B. K. Emerson, the members 

 studied the famous collection of footprints 

 and other impressions from the Connecticut 

 trias made by President E. Hitchcock. 

 These remain in the Appleton Cabinet just 

 as they were left by President Hitchcock. 

 In another building are the fine collections 

 of minerals and rocks which have been 

 gotten together by Professor Emerson since 

 the fire occurred which destroyed the Col- 

 lege collections some years ago. 



Tuesday nine or ten members of the sec- 

 tion availed themselves of the opportunity 



offered to accompany Professor W. M- 

 Davis to the region of trap and sandstone 

 near Meriden, Conn., which he has studied 

 SO thoroughly, from which he has de- 

 scribed overflow sheets of trap, beds of tuflf 

 with ejected blocks and extensive faults. 

 Edmund Otis Hovey. 



SBCTIOKT G. BOTAJSTY. 



The botanists were well represented at 

 the recent meeting of the American Asso- 

 ciation for the Advancement of Science, 

 held at Springfield, Mass. ■ Interesting 

 papers were presented at the meetings of 

 the Botanical Society of America and the 

 Botanical Club. In addition to these Aflil- 

 iated Societies, Section G (Botany), of the 

 Association pi'oper, also had a full program. 



The address of the Vice-President, Dr. J. 

 C. Ai'thur, was delivered on Thursday after- 

 noon, August 29, the subject being ' The 

 Progress of Vegetable Physiology.' As the 

 address appeared in full in Science, Septem- 

 ber 20th, it is not necessary to review it 

 here. The papers read before Section G are 

 briefly reviewed below : 



1. A Leaf Rot of Cabbage, \>y H. L. Eus- 

 SELL, Madison, Wis. In the absence of 

 the author this paper was read by Pro- 

 fessor Barnes, of the University of Wiscon- 

 sin. The disease seems to be associated 

 with bacteria, although the author has not. 

 succeeded in isolating the organism. The 

 axils of the lower leaves first show the dis- 

 ease. These points are usually filled with 

 moisture, and the disease gains an entrance 

 through rents caused by rapid growth of the 

 tissue. Once ^vithiu the tissues, the disease 

 spreads rapidly through the fibro-vascular 

 bundles ; as a result, the functions of the 

 plant are disturbed and the leaves wilt. 

 The disease seems to be diiierent from the 

 one described by Garman, and may be 

 checked by cutting off the affected leaves 

 along the main stalk. 



2. Watermelon Wilt and other Wilt Dis- 



