716 



INDEX 



Soil Physics. *Hydrogen-ion concen- 

 tration measurements of soils of 

 two types. L. J. Gillespie and 

 L. A. Hurst. 578. 

 *Neutral salts, action of, on humus. 

 L. J. Gillespie and L. E. Wise. 

 577. 



Spectroscopy. *Dicyanin, application 

 to stellar spectroscopy. P. W. 

 Merrill. 405. 

 *Wave lengths in the red and infra- 

 red spectra of iron, cobalt, and 

 nickel arcs. W. F. Meggers and 



C. C. KiESS. 575. 



Technology. *Balloon fabrics, deter- 

 mination of permeability of. J. 



D. Edwards. 566. 



*Gas mantle lighting conditions in 

 ten large cities. R. S. McBride 

 and C. E. Rexnicker. 456. 



*Glassware, chemical, comparative 

 tests of. P. H. Walker and F. 

 W. Smither. 578. 



*Household materials (Bur. Stand. 

 Circ. No. 70). 456. 



Measuring instruments, variance of, 

 in relation to accuracy and sensi- 

 tivity. F. J. Schlink. 395. 



*Milling and baking tests of certain 

 cereals. J. A. LeClerc et al. 

 662. 



*Portland cement having high 



magnesia content, properties of. 



P. H. Bates. 250. 

 * Viscosity, absolute, determination 



by short-tube viscosimeters. W. 



H. Herschel. 250. 



*Wax models of fleshy fungi. 

 Eleanor C. Allen. 139. 



*Weighing , scale, stabilized plat- 

 form, of novel design. F. J. 

 Schlink. 368. 



*Wheat-flour substitutes, chemical 

 analysis of. J. A. LeClerc and 

 H. L. Wessling. 662. 



*Wire gages, combined table of sizes 

 in (Bur. Stand. Circ. No. 67.) 566. 



Terrestrial Magnetism. fCorrespond- 

 ing changes in the earth's mag- 

 netic state and in solar activity, 

 1888-1916. L. A. Bauer. 506. 



fCruises III and IV of the yacht 

 "Carnegie" in Arctic and sub- 

 Antarctic regions, 1914 to 1917. 

 J. P. AuLT. 370. 



fDip-of-horizon measurements made 

 on the "Galilee" and "Carnegie." 

 W. J. Peters. 505. 



fMagnetic survey of the United 

 States. D. L. Hazard. 369. 



*United States magnetic tables and 

 charts for 1915. D. L. Hazard. 

 575. 



Volcanology. *Vents at Stromboli, 

 persistence of; bearing on vol- 

 canic mechanism. H. S. Wash- 

 ington. 207. 

 Zoology. fBatrachians, notes on cer- 

 tain United States species. R. 

 W. Shufeldt. 26. 



jBlue crab, life history of. E. P. 

 Churchill, Jr. 297. 



Ciliate Infusoria, origin of. M. M. 

 Metcalf. 427. 



*Crinoids, unstalked, of the Siboga 

 expedition. A. H. Clark. 503. 



fFauna of the human eye. Martha 

 B. Lyon. 414. 



fFish, unrecognized anatomical 

 facts as affecting cultural prac- 

 tices. W. C. Kendall. 213. 



fFishes, speed of. Emerson 

 Stringham. 178. 



fFur industry of Labrador. C. 



BiRDSEYE. 28. 



jHaak as author of Brisson's 1762 

 edition of Regnum Animale. C. 

 W. Stiles. 42. 



fOpalina and the origin of the 

 Ciliata. M. M. Metcalf. 414. 



See also: Biology; Conchology; En- 

 tomology; Evolution; Mammal- 

 ogy; Ornithology; Paleontology; 

 Parasitology; Pathology; Physiol- 

 ogy. 



