182 



Biological Society of Washington. 



Page 



Suclworth, 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 



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



of Hicoria pecan xix 



Vasey, George : Report on the Botanical 



Congress at Genoa xxii 



Some new grasses 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 



Ward, Lester F. : The biological basis of 



psychology xix 



Discovery of fossil plants in the Poto- 

 mac formation at the new reservoir, 

 Washington, D. C., and at Mount Ver- 



non xxii 



Discovery of a second specimen of Saul's 



oak, Quercus 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 iences xxiii 



Weevils, Pea and bean xxii 



White, David: A new walehia from New 

 Mexico.... ... xxiii 



Xenomys Merriam, gen. nov ..................... 160 



Xenomys uelsoui Merriam, 



sp. nov ........ 101 



Yuccas, Distribution of tree ... 

 Yucca moth, Bogus 



xix 



.. 96 



