PROCEEDINGS. XLI 



Leonard Stejneger, a member of the Society, and recently received 

 from Bering Island. Prof. Chickering read a paper upon THE 

 PHYSICAL FEATURES OF MOUNT KATAHDIN. 



FORTY-FIFTH MEETING, April 13, 1883. 



The President occupied the chair. Thirty-six members were 

 present. 



The Committee on Field Meeting reported favorably upon hold 

 ing such a meeting at Bladensburg, April 28th, and upon inviting 

 ladies to attend. The report was accepted by the Society. 



Prof. Lester F. Ward presented a communication upon THE 

 HYBRID OAKS OF THE DISTRICT OF COLUMBIA. Numerous pressed 

 leaves were exhibited. 



Mr. B. F. Johnson presented a note upon THE MODE IN WHICH 

 THE GARTER SNAKE CLIMBS UPON A SMOOTH VERTICAL SURFACE, 

 representing it as somewhat similar to that in which a man climbs. 

 The movement is not a spiral one. The note was commented upon 

 by Messrs. Baker, Schaeffer, Gill, Mason, and Taylor. 



Prof. C. V. Riley made a communication upon THE BAG WORM, 

 THYRIDOPTERYX EPHEMER^EFORMIS,* which is abundant in the Dis 

 trict of Columbia and elsewhere. 



Mr. F. W. True made a few remarks upon A PARASITIC WORM 



FOUND IN THE EGG OF A COMMON HEN. 



Dr. Thomas Taylor presented a communication upon PARASITIC 

 MITES IN THE LUNG-CAVITIES AND TISSUES OF DOMESTIC FowLs.f 



In the discussion which followed, Messrs. Ward and Riley parti 

 cipated. Specimens were exhibited with the two latter communi 

 cations. 



FORTY-SIXTH MEETING, April 27, 1883. 



The President occupied the chair. Thirty members were present. 

 Prof. C. V. Riley exhibited specimens of A MEXICAN JUMP- 



*Proc. Biol. Soc. Washington, vol. II, 1882-84, pp. 80-83. Extras. April 

 10, 1884. 



f See citation at foot of page XL. 



