27] 



VOLUMES XXI-XXX. 



463 



Groth, p., Physical Crystallog- 

 raphy, 21, 185; 24, 381; Chemi- 

 cal Crystallography, 22, 89; 23, 

 153; 27, 265. 



Guadalupian Fauna, Girty, 27, 

 413; Beede, 30, 131. 



Guiana, British, gold fields, Har- 

 rison, 27, 409. 



— Dutch, geology, Beekman, 27, 

 410. 



Guild, F. W., eruptive rocks in 

 Mexico, 22, 159; molybdite from 

 Arizona, 23, 455. 



H 



Haber, F., Thermodynamics, 26, 



92. 

 Hale, G. E., Stellar Evolution, 26, 



577- 

 Halley's comet. Chambers, 30, 



154- 



Hallock, W., Evolution of 

 Weights and Measures, 22, 346. 



Hanausek, T. F., Microscopy of 

 Technical Products, 25, 87. 



Hancock, E. L., Mechanics, 28, 78. 



Handlirsch, A., revision of Paleo- 

 zoic Insects, 21, 468; Fossile 

 Inseckten, 22, 349; 23, 311; 24, 

 447; 25, 264; 26, 584; 27, 263. 



Hardness of minerals. Kip, 24, 23; 

 Parsons, 29, 162. 



Harker, A., Natural History of 

 Igneous Rocks, 28, 503. 



Harvard Botanical Station, Cuba, 

 21, 475; 27, 94. 



— Observatory, see Observatory. 

 Hatch, F. H., Petrology, 27, 410. 

 Hatcher, J. B., geology of Judith 



River beds, 21, 177; Ceratopsia, 

 26, 98. 



Haug, E., Geologic, 25, 261, 529. 



Hauswaldt, H., Interference phe- 

 nomena, 27, 490. 



Hawaii, report of surveyor, 23, 

 321. 



Hawaiian and lunar craters, Pick- 

 ering, 23, 228. 



— volcanoes, Brigham, 29, 363. 

 Hawkins, A. C, effects of glacia- 



tion on Cretaceous clays, 30, 



350. 

 Hay, O. H., Fossil Turtles of 



North America, 26, 516. 

 Hayes, C. W., Handbook for 



Field Geologists, 28, 561. 



Hayford, J. F., geodetic evidence 

 of isostasy, 22, 185; figure of 

 the earth and isostasy, 29, 193; 

 30, 290. 



Headden, W. P., phosphorescent 

 calcites, 21, 301; brown artesian 

 waters of Costilla Co., Colo., 27, 

 305. 



Heat of combination of acidic 

 oxides with sodium oxide, Mix- 

 ter, 26, 12s; 27, 229, 393; 28, 103; 

 129, 488; 30, 193. 



— of combustion of acetylene, 

 Mixter, 22, 13; of silicon, etc., 

 24, 130. 



— of formation of metallic ox- 

 ides, Mixter, 30, 193. 



— of oxidation of chromium, Mix- 

 ter, 26, 12s; of tin, 27, 232; of 

 molybdenum, etc., 29, 488; of 

 tin, 27, 232; of titanium, 27, 393. 



Heath, F. H., determination of 



copper, 24, 65; of arsenic and 



antimony, 25, 513. 

 Heating effects of Rontgen rays 



in different metals, Bumstead, 



21, I ; 25, 299. 

 Heineman, T. W., Physical Basis 



of Civilization, 26, 241. 

 Helium, see CHEMISTRY. 

 Henderson, W. E., Chemistry, 23, 



384- 

 Heredity, Mendel's Principles, 



Punnett, 24, 508; Bateson, 27, 



491; 28, 84. 



— work on, Johannsen, 28, 85. 

 Hershey, O. H., Western Klamath 



stratigraphy, 21, 58. 

 Herter, C. A., Bacterial Infections 



of the Digestive Tract, 24, 91. 

 Hertz's photoelectric effect, 



Bloch, 29, 189. 

 Hidden, W. E., yttrocrasite, 22, 



SIS- 



Hilgard, E. W., peculiarities of 

 rock-weathering, 21, 261; work 

 on soils, noticed, 22, 468. 



Hileman, A., alkalimetric estima- 

 tion of silicon fluoride, 22, 329; 

 estimation of fluorine iodo- 

 metrically, 22, 383. 



Hill, J. W., esters of halogen sub- 

 stituted acids, 30, 72. 



Hillebrand, W. F., new mercury 

 mineral from Texas, 21, 85; 

 vanadium sulphide patronite, 

 etc., from Peru, 24, 141; Texas 

 mercury minerals, 24, 259; 

 plumbojarosite, 30, 191; mose- 



