PROCEEDINGS. XXXVII 



The following communications were made : 



Mr. Frank H. Knowlton, ON SOME ALASKAN WILLOWS AND 

 BIRCHES COLLECTED BY MR. C. L. McKAY, AT NUSHAGAK, IN 

 1881.* 



Dr. Frank Baker, MUSCULAR EOJJILIBRATION. 



Dr. C. A. White, SOME REMARKS ON VEGETABLE CELLS. 



Prof. W. H. Seaman stated that he had recently noticed in the 

 Washington markets what is to this region a new species of tropi 

 cal plant, known in New Orleans as the Japanese plum. The 

 supplies had been received from Georgia. The fruit is indige 

 nous to China and Japan, and in the former country is known as 

 Loo- Chee. 



SEVENTY-EIGHTH MEETING, April 18, 1885. 



The President occupied the chair, and twenty-five members 

 were present. 



The President announced the recent death of Dr. Edward 

 Foreman, a member of the Society, and appointed Messrs. 

 White, Seaman, and Ward, a committee to prepare a report 

 upon his services to science. 



Dr. Theobald Smith read a paper, detailing KOCH'S METHOD 

 OF ISOLATING AND CULTIVATING BACTERIA, as used in the 

 laboratory of the Bureau of Animal Industry. f 



Mr. A. B. Johnson presented a communication upon THE 

 SHIP-WORM, TEREDO NAVALIS, AND THE SHEEPSHEAD, ARCH- 

 OSARGUS PROBATOCEPHALUS. He exhibited sections of the piles 

 of wharves, which had been gnawed by the sheepshead, in order 

 to feed upon the teredos, thus aiding in the work of destruction 

 which is sufficiently rapid when left to the latter species alone. 



After adjournment, Mr. Romyn Hitchcock exhibited, under the 

 microscope, a series of preparations showing the comma bacillus 

 of cholera, according to Koch. 



* 1885. KNOWLTON, FRANK H. List of Plants collected by Mr. Charles 

 L. McKay, at Nushagak, Alaska, in 1881, for the United States National 

 Museum. <Proc. U. S. Nat. Mus., viii, pp. 213-221. 



t 1885. SALMON, D. E., and SMITH, THEOBALD, Drs. Koch's Method 

 of Isolating and Cultivating Bacteria, as used in the Laboratory of the 

 Bureau of Animal Industry, Dept. Agriculture. <Am. Monthly Micro. 

 Jour., vi, p. Si. (Abstract"*. 



