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 nbte 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^formis,* 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 coM^ION Hen. 



Dr. Thomas Taylor presented a communication upon Parasitic 

 Mites in the Lung-Cavities and Tissues of Domestic FowLS.f 



In tlie 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- 



*rioc. Biol. Soc. Washincrton, vol. II, 1882-84, pp. 80-83. Extras, April 

 10, 1884. 



"j" See citation at foot of page XL. 



