542 



INDEX 



1850. From zone observations 

 made at the U. S. Naval Observa- 

 tory 1846-1852, 77 



Lotka, A. J. Evolution in discontinu- 

 ous systems, I, II, III, 2, 49, 66 



*Loughlin, G. F. The gabbros and 

 associated rocks at Preston, Conn, 

 408 



*Ltjmsden, L. L. The causation and 

 prevention of typhoid fever, with 

 special reference to conditions ob- 

 served in Yakima County, Wash- 

 ington, 87 



Ltjpton, C. T. Notes on the geology 

 of the San Rafael Swell, Utah, 185 



McBeth, I. G. See Kellerman, K. F. 



*McBride, R. S. Standardization of 

 potassium permanganate solution 

 by sodium oxalate, 420 



*McCoy, G. W. Bacterium tularense, 

 the cause of a plague-like disease 

 of rodents, 533 



* Immunity of wild rats {M us norve- 



gicus) to plague infection, 494 



* A note on the susceptibility of 



ground-squirrels (Citellus beech- 

 eyi, Richardson) to tuberculosis, 

 494 



* Study of the virulence of cultures 



of Bacillus pestis of various sources 

 and ages, 533 



* — — Susceptibility of a ground-squir- 

 rel (Ammospermophilus leucurus, 

 Merriam) to plague, 495 



* — — -The virulence of Bacillus pestis 

 of ground-squirrel origin, 494 



McDaniel, A. S. The silver voltame- 

 ter, II, 509 



Macfarlane, A. Account of research- 

 es in the algebra of physics, I, II, 

 III, 331, 363, 395 



McKelvy, E. C. Density and thermal 

 expansion of ethyl alcohol and its 

 mixtures with water, 95 



*McLachlan, Argyle. Branching hab- 

 its of Egyptian cotton, 491 



*Mann, A. Pigment in the seed-coat 

 of the cowpea, 294 



*Martin, G. C. A geologic reconnais- 

 sance of the Iliamna region, Alaska 

 224 



* Geology and coal field of the lower 



Matanuska valley, Alaska, 225 



*Martin, Lawrence. Earthquakes at 

 Yakutat Bay, Alaska, in Sept., 

 1899, 421 



* Mineral resources of Johnstown, 



Pa., and vicinity, 135 



*Matthes, F. E. Glaciers of Mt, Rain- 

 ier, 297 



*— — Topology, topography andtopom- 

 etry, 422 



*Maxon, W. R. On the identity of 

 Cyathea multiflora, type of the 

 genus Hemitelia R. Br., 492 



* — • — -A remarkable new fern from Pan- 

 ama, 493 



* Studies of tropical American 



ferns, No. 3, 492 



* Three new club-mosses from Pan- 

 ama, 441 



*Meinzer, O. E. Geology and water 

 resources of Eastancia Valley,New 

 Mexico, with notes on ground- 

 water conditions in adjacent parts 

 of central New Mexico, 226 



* — — Ground water in Juab, Millard, 

 and Iron Counties, Utah, 226 



* Typical bolson in the Southwest, 



357 



*Mell, C. D. Columbian mahogany: 

 Its charateristics and use as a sub- 

 stitute for true mahogany, 16 



*Metcalf, H. The control of the 

 chestnut bark disease, 12 



Miller, E. R. Note on the influence 

 of clouds on the distribution of solar 

 radiation, 377 



*Miller, J. M. Determination of the 

 pole distance of a magnet, 140 



Solar radiation intensities at Mad- 

 ison, Wis., 411 



*Miller, G. S., Jr. North American 

 species of Nymphaca, 426 



*Moffit, F. H. Headwater regions 

 of Gulkana and Susitna rivers, 



