242 



August 4, 1852. 



Dr. Durkee in the Chair. 



Dr. Durkee exhibited a branch of Morus alba bearing 

 fruit, taken from a tree which had sprung from seed grown 

 on a graft of Morus exyansa. The original Morus alba 

 was cut off about six inches above the ground, and Morus 

 expaiisa was grafted into it. The result was, a tree bearing 

 the foUage of Morus expansa with the fruit of Morus alba. 

 The tree growing from this fruit had all the characters both 

 in foliage and fruit of the Morus alba, the ingrafted stock 

 having entirely died out. 



Dr. Durkee exhibited a specimen of Ascidia with an 

 Alga, Ptilota elegans, growing from it. 



Dr. Gould presented, in behalf of Mr. James G. Swan, 

 of San Francisco, a daguerreotype by Shaw of San Fran- 

 cisco, of Chetz-a-mockaha or Duke of York, a chief of 

 the Clalum Indians at Puget Sound. 



Dr. Gould announced the donation of from 1,000 to 

 1,500 shells from the Eastern Seas in the name of Mr. 

 Henry T. Parker. 



Mr. Sprague presented a young Dog Fish, Acanthias 

 Americanusy with the yolk bag attached, and a prepared 

 skin of an Alewife. 



Prof. J. P. Cooke, of Cambridge, was elected a Resident 

 Member of the Society. 



