180 MICHIGAN ACADEMY OF SCIENCE. 



Page 

 Walker, Bryant, on present knowledge of the molluscan fauna of Michigan 



(reference) 12 



on shells of quaternary deposits (reference) 88 



on terrestrial shell-bearing mollusca of Michigan (reference).. 119 



on Michigan mollusca (reference) 88 



Ward, Dr. H. B., on work of Michigan fish commission (reference) 12 



Water lilies, leaf-miner in 110-111 



Water moccasin, bite causes death 92 



Watkins, L. Whitney, on birds that nest in open meadows 66-75 



Waverly group 63 



Weissman and heredity 37 



West Indian Islands, origin of land mollusks of » 55, 56 



once connected with Central America 55 



Wheeler, Chas. F., on additions to flora of Michigan (reference) 12 



on Alpena county plants (reference) 88 



on the genus Antennaria in Michigan (reference) 119 



on Russian thistle and tumbling mustard (reference) 88 



on some boreal islands in southern Michigan (reference) 119 



on some Michigan plants (reference) 109 



White, Alfred H., on beet sugar manufacture (reference) 119 



Whitman, Dr. C. O., on color pattern of the pigeon's wing (reference) 119 



Whittemore, Chas. A., on limestone exposure at Grand Rapids 62-65 



Wilbur, Dr. C. L., on climate and mortality in Michigan 139-142 



on vital statistics (reference) 12 



on vital statistics of Michigan 102-105 



Wild pigeon, extermination of 66, 67 



Wild turkey, decrease with clearing of land 66 



Winchell, Alexander, unpublished paper on geology of Western Michigan 



(reference) 41 



Withdrawal of members for non-payment of dues 151 



Wolcott, Dr. R. H., on lepidoptera of Michigan 32 



Wood duck, decrease in numbers of 66 



Woodpecker, pileated, change in distribution of 66 



Worcester, D. C, on apparatus for dehydration, etc. (reference) 88 



on birds of Michigan (reference) 12 



on factors in the origin and distribution of species of land birds in 



island groups (reference) 109 



on Spanish colonial administration (reference) 109 



Wren, long-billed marsh, nesting habits 75 



short-billed marsh, nesting habits 75 



Y. 



Yellowthroat, Maryland, nesting habits 75 



Yersin of Paris 1*> 



Ypsilanti meeting, March, 1S99, minutes 117,118 



Z. 



Zenaida macroura, nesting and food habits 69 



Zones of aquatic plant life 27 



Zones of Magnin 27 



Zonites and Pupa, found in the Carboniferous v 55 



of world-wide distribution 55 



Zonitidse and Pupida? abundant in Boreal region 46 



Zono-limnetic, term denned 26 



Zoology, organization of section of 11 



