76 



BIOLOGICAL SOCIETY OF WASHINGTON. 



J- 



PAGE | 



James, J. F. Variation with special refer 

 ence to certain Paleozoic genera . . . vii 

 Organisms in St. Peter's sandstone . . . ix 

 Fucoids and other problematic organ 

 isms x 



Joint Commission, delegates to xii 



K. 



Knees, cypress, what are . . xiv 



Knowlton, F. H. What are cypress 



knees xiv 



Fruiting ferns from the Laramie 



group xviii 



A fossil bread-fruit tree from the Sierras 



of California xix 



Kowalevsky 59 



Kuntze's Revisio Generum Plantarum, 

 review of xix 



L. 



Lamarck, Jean-Baptiste-Pierre-Antoine 



de Monet, Chevalier de 



12, 13, 14, 16, 19, 21, 53, 61 



Laniarckism 12, 14, 18, ^3, 53, 54 



Laukester, E. Ray i, 10, 25, 50, 68, 69 



Laramie group, fruiting ferns from . . . xviii 



Lathrodectus, poison glands of x 



Lava beds and canons of Snake River, 



Idaho, life in x 



Lepus idahoensis xi 



Life, animal, above snow line on Mt. 



Shasta, notes on the vi 



Life, animal and vegetable, distribution 



of. xiv 



Life, vertebrate, discovery of, in Lower 



Silurian strata "...., xiii 



Lophiomvs imhansii viii 



Lucas, F. A. A foot disease of captive 



birds x 



The wing of Metopidius xi 



Exhibition of young Hoatzins .... xiii 

 Specimen of Bison latifrons from Peace 



Creek, Florida xiii 



A point in the anatomy of Hesperornis . xiv 

 Remarks on a new tortoise from the 

 Galapagos Islands xvi 



M. 



PAGE 

 13 



Maill t, De 



Malthus 65 



Mammals, cretaceous, review of discovery 



of xiii 



Mammals, distribution of, on Pribylov 



Islands xvi 



Mammals, North American, new species 



of viii 



Man, acquired mental qualities of .... 64 

 Man, an undescribed muscle from the 



iufraclavicular region of v 



Mann, B. P. Authorship of the bibli 

 ography of economic entomology . . . . ix 

 Marmots, North American, remarks on 



affinities of xix 



Marx, George Investigations of the 



poison glands of Lathrodectus x 



The structure and construction of the 



geometric spider web xviii 



Masius, A. G., election of xvii 



Meeting, eleventh annual, 1891 xii 



Meeting, eleventh anniversary xii 



Merriam, C. Hart Evidences of Sonoran 

 origin of the flora and fauna of the 



Gulf States vi 



Historical review of the faunal and 

 floral divisions that have been pro 

 posed for North America vii 



Exhibition of new species of North 



American mammals viii 



Life in the lava beds and canons of 



Snake river, Idaho, in October x 



A new rabbit from the Snake Plains of 



Idaho Lepus idahoensis xi 



Distribution of animal and vegetable 



life xiv 



Remarks on the affinities of the North 

 American squirrels, chipmunks, 

 spermophiles, prairie dogs and mar 

 mots xix 



Metopidius, wing of xi 



Micro-organisms, life history of, with rela 

 tion to evolution viii 



Mohave desert region, winter aspects of xviii 



Mollusks, boring 8, 9 



Monet, Jean-Baptiste-Pierre-Antoine de . .14 

 Mooce, V. A. Production of immunity in 

 guinea pigs with sterilized cultures of 



hog cholera bacillus xv 



Echinococcus in swine xviii 



Morsell, W. F., election of xvii 



Muscle, an undescribed, from the infra- 

 clavicular region of man . v 



Muskrat, teeth of . . xi 



Mutilations, effect of 7, 8 



Mutilations, transmissibility of 23 



