VOLUMES XXXI-XL. 





Hawaiian Volcano Observatory. 

 38. [03. 



Hawkes, H. E., Algebra, 32, 10S. 



Hawkins, A. C, minerals of 

 Princeton, N. J., 35, 447; dato- 

 lite from Xew Jersey. 39, 473. 



Hay, O. P., Pleistocene "Mammals 

 oi Iowa. 39. 320. 



Hayden, E. M., Jr., separation oi 

 zirconium, 38, 137. 



Hazard, D. L M magnetic meas- 

 urement-. 32. v 



Heape, W., Embryology, 39, 485. 



Heat Conductivity, Mathematical 

 Theory, [ngersoll and Zobel, 

 35. 544- 



— of formation of hydrogen. 

 Langmuir, 37, 470. 



— papers on, see Mixter, 



W. G. 



— generated by radio-active sub- 



nces, Duane, 31, 2^7. 



— Radiation. Theory of, Planck 

 and Ma sins. 37, ; 



Heat-waves, focal isolation of 

 ... Rubens and Wood. 31, 



Hechinger, L. A., unconformity 

 in Narragansett basin, 38, 45. 



Hecker, O., gravity determina- 

 tions at -en.. 32, 388; 33, 245. 



Hegner, R. W.. Zoology, 31. S3: 

 35, [99; Germ-cell Cycle in 

 Animals, 39, 324. 



Heineman, P. G.. Bacteriology. 

 33- 



Helium, absorption. Paschen, 39, 

 123. 



— canal ray-, spectrum, Stark, 

 etc.. 35, 



Henderson, L. J., Fitness of Envi- 

 ronment. 35, 543- 

 Henry, T. A., Plant Alkaloids, 35, 



Herbert. S., Evolution, 37, 120. 

 Heredity in relation t" Evolution, 

 Ca-tle. 33, " 



— and Memory, Ward. 37, T23. 

 Hershey. O. H., the Belt and IV- 



lor 

 Hess, F. L., . 31, 432, 



ad a. 36, 

 Hicks. W. B., sulphohalite, 



38. 58, 437- 



Hill. D. U., purification of barium 

 sulohate. 35, 311; influen 

 alcohol and upon 



1 admium. 36, 543; 



separation of potassium and 



nun. 40, 75. 

 Hillebrand, W. F., action of heavy 



solutions on minerals. 35, 439; 



calciovolborthite (?) from Utah, 



35, 44i. 

 Himalayas, origin, Burrard, 34. 



4S0. 

 — Trias o\. Diener, 35, 108. 

 Hindu-Arabic Mineral-. Smith 



and Karpinsky, 33. 168. 

 Hintze, C, Mineralogie, 32, 107; 



37. 204. 



Hoag, C. G., Theory of Interest, 



38, T I 4 . 



Hobart, H. M., Electric Motors. 

 31, 78. 



Hobbs, W. H M Characteristics of 

 Existing Glaciers, 32, 71. 



Holden, W. H. T., hydracrylic es- 

 ters. 40, 511. 



Hollick, A., Kenai flora of Alaska, 



31, 327- 



Holm, T., Mullugo verticillata, 31, 



525. 

 Holtedahl, O., geology of Spitz- 



bergen. 37, 415. 

 Hornor, N. N„ sealing wax as a 



source of lime for Wehnelt 



cathode. 36, 591. 

 Hostetter, J. C., density determi- 

 nations at. high temperature-. 



37. i- 

 House-flies, Hewitt, 35, too. 

 Houston, R. A., Light. 40, 662. 

 HrdkVka, A., Early Man in 



America. 34, 543: 35, HI- 

 Hubbard, G. D., Finger Lake bed 



in Ohio. 37, 444. 

 Hudson river, aqueduct crossing, 



Kemp. 34. 1. 

 Huene, F. R. von, Dinosaurs not 



a natural order. 38, [45. 

 Hughes, H. J., Hydraulics, 32, 



401. 

 Human remains at Cuzco, see 



Peru. 

 Hunt, W. F., Mineral Table-. 31, 



577; cerussite twins, Mexico, 



32, 45: triplite, Nevada, 36, 51; 

 vanadiferous segirites from 

 Montana. 36, 2X0: bournonite 

 crystals from Utah, 40. 145. 



Hunters, Ancient and Modern, 



las, 40, . 

 Huntington, E.. Climatic 1 



in Arid America, 38. 

 Hurricanes, West Indian, I 



36. 



