Proceedings. xi 



October 24, 1896 264th Meeting. 



The President in the chair and forty persons present. 



The following communications were presented : 



C. Hart Merriam : A New Fir from Arizona.* 



F. V. Coville : Notice of Britton and Brown's Illustrated Flora 

 of the Northern United States and Canada. 



Erwiu F. Smith: A Bacterial Disease of Potatoes, Tomatoes, 

 and Egg-plants.f 



Under the head of Brief Notes 



Erwin F. Smith exhibited Leuconostoc from a sugar vat in 

 Louisiana. 



F. V. Coville exhibited Protococcus nivalis and Nymphsea poly- 

 sepala. 



C. L. Pollard reported Iresine panicidata as an addition to the 

 flora of Washington, D. C. 



A. F. Woods : The Spotting of Maple Leaves. 



B. E. Fernow : Spiny Plants from Arizona. 



C. Hart Merriam reported the addition of a rare shrew (Sorex 

 versepacis) from Guatemala to the U. S. National Museum, mak 

 ing the collection of North American shrews complete. 



November 7, 1896 265th Meeting. 



The President in the chair and forty-four persons present. 

 The following communications were presented : 

 Theo. Gill : The Category of Family or Order in Biology. 

 C. Hart Merriam : Notes on the Fauna of Oregon. 

 C. Hart Merriam: Supplementary Notes on Tropical Ameri 

 can Shrews. 



Under the head of Brief Notes 



F. V. Coville spoke of a new Species of Juncus.% 



L. O. Howard : Hymenopterous parasites of Shade-tree Insects. 



November 21, 1896 266th Meeting. 



Vice-President L. O. Howard in the chair and forty-seven 

 persons present. 



The following communications were presented : 



G. H. Hicks : The Mildews (Erysipheas) of Michigan. 



* Proc. Biol. Soc. Washn., x, pp. 115-118, November 3, 1896. 



f Bull. No. 12, Div. of Vegetable Phys. & Path., U. S. Uept, Agriculture. 



JProc. Biol. Soc. Wash'n, x, pp. 127-130, November 14, 1896. 



$ To be published in vol. xi, Proc. Biol. Soc. 



