ALPHABETICAL INDEX. 



79 



W. 



Walcott, C. D., a new genus and species 

 of ostracod crustacean from the Lower 



Cambrian v 



Discovery of vertebrate life in Lower 



Silurian (Ordovician) strata . . . . xiii 

 Wallace, Alfred Russel . . r,-;, 18, 25, 45, 68, 69 

 Ward, Lester F., presidential address, 

 Neo-Darwinism and Neo-Lamarck- 



ism xii, n 



Flowers that bloom in the winter time . . v 



American Triassic flora ix 



Some Florida plants xv 



Haeckel's radiolaria of the Challenger 

 Expedition . xviii 



PAGE 



Three days in the tropics xviii 



Recent discoveries of Potomac fossil 



plants near Washington x ix 



Alphonse de Candolle on the transmis 

 sion of acquired characters xix 



Web. geometric spider, structure and 



construction of xviii 



Weismann, August 25, 29, 30 



33, 34, 35, 36, 37. 38, 40, 43, 44, 45, 46, 48, 49 

 50, 51, 52, 55, 56, 57, 59, 60, 61, 65, 66, 67, 69 



Weismann hypothesis ....1,7 



White, David, some peculiar forms in an 



upland Carboniferous flora xviii 



Wing of Metopidius xi 



Worms in cattle, some little known . . . xiii 



