39 



These bodies, in spite of their large size, may very well be 

 living amoeboid organisms which because of their great plas- 

 ticity can pass through so-called anti-bacterial filters. I have 

 found these bodies distinctly associated with the mosaic diseases 

 of tobacco and dahlia. They occur in all the tissues of the leaf 

 primordia, the growing points, older blotched leaves, and in 

 tobacco I have found them in the stem, and roots. TheX-bodies, 

 as I call these intracellular bodies, give very clear evidence that 

 they are not mere degeneration products of the cell protoplasm. 

 They show a structure very much like that of protoplasm. They 

 are rounded, oval, or amoeboid in form. They show a definite in- 

 dication of flowing and elongation movements in the form of 

 pseudopod-like extensions of the body surface. Structures re- 

 sembling nuclei and vacuoles are present within these bodies. 

 They are found in all stages of what appears to be division by con- 

 striction, including such interesting forms as those in which the 

 two divided halves of the body proper have become rounded up 

 within a clear space, the stretched and constricting portion of 

 what appears to be a membrane remaining still unbroken be- 

 tween them. They are distributed to the daughter cells upon the 

 division of the host cell, and spread through the growing regions 

 of the plant at least, by this method." 



Arthur H. Graves, 



Secretary. 



Meeting of February 8, 1927 



This meeting was held at the American Museum of Natural 

 History and was called to order by President Richards at 8:15 

 p. m. 



Mr. Raymond Adolph, of Interstate Park, Bear Mountain, 

 N. Y., and Miss Clyde Chandler, of Columbia University, 

 Johnson Hall, 411 West ii6th Street, New York City, were 

 unanimously elected to membership. The resignation of Dr. 

 L. J. Pessin was accepted. 



The secretary read an invitation from the American Philo- 

 sophical Society to the Torrey Botanical Club to be represented 

 at the 200th anniversary of the founding of the Society by 

 Benjamin Franklin, to be held April 27, 28, 29 and 30, 1927. By 

 vote of the Club, the president was authorized to appoint a 

 delegate to attend. 



