272 INDEX 
Head, R. E.: The Use of the Microscope in Ore Dressing ............ 204 
Heating Feasible, Is Electric Air, by Joseph F. Merrill _............ 103 
Historical Outline of the Development of Entomology to 1800 
by \Elawold) | Ri (aap iu ie an a ul hi ahd Na 47 
Hydrochloric Acid, Standardization from Constant Boiling, by 
J.T. cRonner amd: Pi Bk Bret bam) 2 Vee a aN lg 173 
Hydrometallurgy as Applied to the Mineral Industry, by 
Clarence\A../Wrent eee ieee 2D) OL aa 142 
Iilumination from Automobile Headlights, Intensity and Dis- 
tribution! of, (by (Orson! Savon Ce Me Nir re a 
Illumination, Some Problems of Daylight, by C. Arthur Smith 167 
Indicator Plants, Detection of Overgrazing by Means of, by 
Diario Minders 1b iilr se Mi Ui. SOMTOe aa Re CO pene ER 56 
Insects, Cases of Exceptional Growth of Certain Species of 
Mammals, Reptiles and, by L. Moth Iverson ...............-..-.------ 28 
Intensity and Distribution of Illumination from Automobile 
Headlights (abstract), by Orson Smith ....020000.022eeeec eee Si 
Investigations in Dehydration, by Tracy H. Abell -....-..0220.2020022.... 69 
Irrigation, Alkali Water for, by Frank S. Harris and N. I. Butt.... 87 
Irrigation Water, Experiments on Capacities of Soils for, by 
OW. Tsraelsen) and! FR Ey Wiest iis) e ack ay nee Tae ae ay 139 
Is Disinfection a Reaction of the First Order? by L. F. Shackell 162 
Is Electric Air Heating Feasible? (abstract), by J. F. Merrill... 103 
Israelsen, O. W. and F. L. West: Experiments on Capacities of 
Sons) for Irrigation: Watery 2p ons Wey AON FUL eee 1389 
Iverson, L. Moth: Cases of Exceptional Growth of Certain 
Species of Mammals, Reptiles and Insects (abstract) ........ 28 
Jakowsky, J. J., M. J. Gavin and: The Use and Function of 
Steam in Retorting Oil-Shales ~............0.........- Sa PRYING SIH an Le 32 
Jones, Marcus Wey Mentone UN uBR OLAS Oe alas REBUM Sata) 4 
Karrick, L. C.: Destructive Distillation of Oil Shales -............... PAI ti | 
Kline, W. D. and W. D. Bonner: Comparison of the Action 
of Potassium Cyanide and Sodium Cyanide on Alkyl Halides 174 
Korstian, C. F.: Evaporation and Soil Moisture in Relation to 
Horest Pe mites La Rs ak OUR ead ee Melee ae Be 116 
Korstian, C. F.: Making the Forests of Utah a Permanent Re- 
source) \(Presidential \addmess))| iii) utes k Ue ee ya ae 
Horstiany |G. ibs aMenGiomed pa kee ciel Neil) ave S00 a on Hote Ren pile, 5 
Korstian, C. F.: Relation of Precipitation to Height Growth of 
Porest: stree) \serphrm is ui c VE SEH A Ay Se See ele cer tae 260 
Locke, S. B.: Forests and Fish and Game Conservation ............-- 190 
Making the Forests of Utah a Permanent Resource (Pres- 
idential address) by) We Hie orsthe ne ey eee 177 
Mammals, Reptiles and Insects, Cases of Exceptional Growth 
of Certain Species of, (abstract), by L. Moth Iverson ........ 28 
Manure at Different Stages of Growth upon the Relative 
Abundance of Actinomyces, Non-Spore-Formers and 
Spore-Formers in the Soil, Effect of Green, by Thomas 
Bis (SRE BR) (eA A DU Waa UA SIN I LEE 245 
