AUTHOR INDEX 



667 



Gibson, K. S. *Ultra-violet and vis- 

 ible transmission of eye-protecting 

 glasses. 380. 



GiDLEY, James William. fCanid, no- 

 tice of a large, from the Cumberland 

 cave deposits. 287. 



Foot, primitive mammalian, sig- 

 nificance of divergence of first digit 

 in. 273. 



Goldman, M. I. fGlauconite, general 

 character, mode of occurrence and 

 origin of. 501. 



Goss, Byron F. t^as warfare at the 

 front. 604. 



Greene, Charles T. *Diptera, con- 

 tribution to the biologj^ of North 

 American. 328. 



Gregg, W. R. fTrans-Atlantic flight 

 from meteorologists' point of view. 



353- 

 Griggs, Robert F. fKatmai and the 



Ten Thousand Smokes. 347. 

 Grout, Frank F. *Clays and shales 



of Minnesota. 600. 

 GuTsell, J. S. fUse of selective screens 



in the study of oyster larvae. 656. 

 Hammond, J. C. fObservations of solar 



eclipse of June 8, 1918, by Naval 



Observatory Eclipse Expedition. 20. 

 Hancock, E. T. *Geology and oil and 



gas prospects of the Lake Basin 



field, Montana. 50. 

 Hanna, G. Dallas. fAvifauna of 



Pribilof Islands, Alaska, additions 



to, including species new tb North 



America. 176. 



*Birds, summer, of St. Matthew 



Island Bird Reservation. 327. 



Harrington, George L. *Anvik- 

 Andreafski region, Alaska. 600. 



*Fairbanks, Ruby, Hot vSprings, 



and Tolstoi Districts, Alaska, 

 mining in. 635. 



*Seward Peninsula, Alaska, min- 

 eral resources of. 636. 



Harvey, Rodney B. ^Pythium debar y- 

 anum on potato tuber, physiological 

 study of. 415. 



HaTBcOck, Bernard D. *Tiles, hol- 

 low building, tests of. 343. 



Hawkins, Lon A. ^Pythium debary^ 

 anum on the potato tuber, physio» 

 logical study of. 415. 



Heikes, V. C. *Geology and ore de- 

 posits of the Tintic mining district, 

 Utah. 316. 



Henry, J. H. fHot spell of August, 

 1918, the. 140. 



Hess, F. L. fPhenocrysts in granitic 

 intrusions. 294. 



Hewett, D. F. fManganese deposits. 

 386. 



HEViriTT, J. N. B. *Seneca fiction, 

 legends and mjrths. 340. 



HiDNERT, Peter. *Molybdenum, pre- 

 liminary determination of thermal 

 expansion of. 341. 



Hitchcock, A. S. *Flora of the Dis- 

 trict of Columbia and vicinity. 553. 



fHawaiian Islands, botanical trip 



to. 204. 



Ixophorus unisetus, history of the 



Mexican grass. 546. 



Lasiacis, a peculiar species of. 35 . 



tLong's Peak, Colorado, notes on 



botany of. 55. 



*Mexico, a botanical trip to. 



285. 



fSpecies, what kind of characters 



distinguish, from a subdivision of a 

 species? 234. 



HoLLisTER, N. *African, East, mam- 

 mals in the United States National 

 Museum. 50, 343. 



— — fSpecies, what kind of characters 

 distinguish, from a subdivision of a 

 species? 235. 



Honaman, R. K. Conductivity of in- 

 sulating materials at high tempera- 

 tures, methods of measuring. 252. 



HosTETTER, J. C. Apparatus for grow- 

 ing crystals under controlled con- 

 ditions. 85. 



— - — *Electrometric titrations, with 

 special reference to the determina- 

 tion of ferrous and ferric iron. 630. 



