ALPHABETICAL INDEX. 



59 



Insects underground, Apparatus for Study 

 of, and plant-roots xi 



J- 



James, J. P., the effect of Rain on Earth 



worms xviii 



The Floras of Southern Ohio and 

 Eastern Maryland xxi 



K. 



Kangaroo rats, Dipodomys xi 



Kidder, Dr. J. H., death of announced . xviii 

 King, Dr. A. F. A., on the Flight of young 



birds xxiii 



Knowlton, F. H., the fossil wood of the 



Yellowstone National Park . . . . xi 

 Fossil wood and Lignites of the 

 Potomac formation . . xii 



L. 



Lachnosterna, sexual characters in .... xii 

 Lagomys schisticeps from the Sierra 



Nevada, California xv 



Lignites and fossil wood of Potomac for 

 mation xii 



I/'riodeiidron tulipifene , Ancestors of . . xxi 

 Lucas, F. A., the affinities of Chamaae . . xi 

 On abnormalities in the Ribs of 



Birds xi 



Notes on the Diseases of menagerie 

 Animals . . , xiv 



M. 



Mammals, changes in Catalogues of 



American viii 



Marmot or ground hog of the genus 



Arctomys xvii 



Marx, George, a new Spider and its influ 

 ence on classification xxi 



Meeting, Ninth Annual xiv 



Meeting, postponed Ninth Anniversary . xxii 



Meeting, Tenth Annual, 1890 xxiii 



Meeting, Anniversary, Tenth. . .'. . . xxiv 

 Melampsora, hydrangese notes on .... xvii 



Melophagus ovinus, sheeptick xv 



Merrirm, C. H., on a new Fox from Cali 

 fornia vii 



Description of a new species of 



American Skunk viii 



Description of a new meadow Mouse 

 w:th remarks on the sub-genus 



Pedomys x 



A Br.t new to the United States and - 

 new localities for other North 

 American mammals . . x 



PAGE 



Notes on the North American Kan 

 garoo Rats belonging to the genus 



Dipodomys xi 



A new species of Arvicola from the 



Black hills of Dakota xii 



New Ground Squirrel froni Cali 

 fornia xiii 



A new species of Pika (Lagomys) . . xv 

 A new and remarkable Vole from 



British Columbia xvi 



A new species of Ground Hog or 



Marmot of the genus Arctomys . xvii 

 A new species of Ground Squirrel 



from Western Arizona xvii 



A new genus and two new species 



of Lemming Mouse or Vole from 



British Columbia ...... xix 



Two new species of Spermophile 



from the deserts bordering the 



Lower Colorado river in California 



and Arizona. (Spermophilus mo- 



havensis and S. neglectus) .... xix 



Revision of the Grasshopper Mice 



and Pocket Mice with descriptions 



of new species xx 



Remarks on the spotted Skunks 

 (genus Spilogale,) with descrip 

 tions of new species xxi 



A new Spermophile from the 



Painted Desert, Arizona xxi 



A new Red-backed Mouse from Col 

 orado xxiii 



General results of a Biological Sur 

 vey of the San Francisco Moun 

 tain region xxiii 



Mice, Grasshopper and Pocket, new spe 

 cies and revision of xx 



Microtome, new freezing xvi 



Micro-organisms of Texas fever xxii 



Mollusks, deep-sea, and the conditions 

 under which they live, ninth Presi 

 dential address xxii 



Mollusks, modifications of gill in uni 

 valve xii 



Moore, V. A., notes on the morphology of 



Podophyllum peltatum xxi 



Morphology of the genus Carex, contribu 

 tions to xv 



Morphology of Podophyllum peltatum, 



notes on xxi 



Mouse, Meadow, new with remarks on the 



sub-genus Pedomys x 



Mouse, Meadow, new from Dakota .... xii 

 Mouse, Lemming, new genus and two new 



species of, from British America .... xix 

 Mouse, parasitic protozoa (Coccidea) in 



the : xix 



Mouse, new Red-backed from Colorado . xxiii 



