182 



Biological Society of Washington. 



Page 

 Sudworth, George B. : Some controversial 

 points in botanical nomenclature xxii 



Tsenia ovilla xx 



Texas, Influence of cross timbers on fauna 



of xxiii 



Thinnfeldia polymorph Lx., sp 153 



V 



Van Deman, H. E. : Variations in the fruit 

 of Hieoria pecan xix 



Vasey, George : Report on the. Botanical 



Congress at Genoa xxii 



Some new gra.s.^es xxiii 



W 



Walchia, A new, from New Mexico xxiii 



Walcott, Charles D. : Note on Lower Cam- 

 brian fossils from Cohassett, Mass 155 



Wallace's fallacies, Remarks respecting 49 



Page 

 Ward, Lester F. : The biological basis of 



psychology xix 



Discovery of fossil plants in the Polo- 

 mac formation at the new reservoir, 

 Wasliington, D. C, and at Mount Ver- 

 non xxii 



Discovery oY a second specimen of Saul's 



oak, Querciis prinos X alba xxii 



Frost freaks of the Dittany xxiv 



Washington, D. C, Additions to the flora of.. 105 

 Webster, F. M. : Some entomological factors 



in the problem of country fences xxiii 



Weevils, Pea and bean xxii 



White, David: A new walchia from New 

 Mexico xxiii 



Xeuomys Merriam, gen. nov 160 



Xeuoinys nelsonl Merriam, sp. nov IGl 



Yuccas, Distribution of tree xix 



Yucca moth, Bogus 96 



