708 



INDEX 



*Ioclometric determinations of sul- 

 fur dioxide and the sulfites. J. 

 B. Ferguson. 203. 



fMeteorites, rarer constituents of. 

 G. P. Merrill. 98. 



Nitrogen problem in relation to the 

 war. A. A. Noyes. 381, 1663. 



fPapain from Carica papaya grown 

 in Florida. V. K. Chesnut. 458. 



*Soy-bean products, fermented. 

 Charles Thom. 142. 



*Soy-beans, composition of and use 

 in breadmaking. J. A. LeClerc. 

 142. I I 1 



♦Ternary system H20-K2Si03-Si02» 

 G. W. Maroy and C. N. Fenner. 

 203. 



Zirconium phosphate, precipitation 

 of. George Steiger. 637. 



See also: Crystallography; Electro- 

 chemistry; Geochemistry; Geol- 

 ogy; Mineralogy; Physical Chem- 

 istry; Technology. 

 Climatology. *Changes in oceanic and 

 atmospheric temperatures and 

 their relation to changes in the 

 sun's activity. Fridtjof Nan- 

 sen. 135. 

 Conchology. The genus Amphidromus 

 from islands of the Palawan Pas- 

 sage. Paul Bartsch. 361. 



Leptopoma nitidum, key to sub- 

 species of. Paul Bartsch. 532. 



The genus Obba in the islands of 

 Bohol and Panglao, P. I. Paul 

 Bartsch. 16. 



Obba marginata; key and discussion 

 of the Philippine subspecies. 

 Paul Bartsch. 60. 



Philippine Helicinidae, classifica- 

 tion of, especially Geophorus. 

 Paul Bartsch. 643. 



Crystallography. *Alkaloids, optical- 

 crystallographic identification of. 

 E. T. Wherry. 658. 

 Assignment of crystals to symmetry 

 classes. E. T. Wherry. 480. 



fCertain relations between optica 

 properties and crystal form. E. 

 T. Wherry. 180. 



*Cinchona alkaloids, optical-crys- 

 tallographic identification of. E. 

 T. Wherry and Elias Yanovsky. 

 658. 



Diamond lattice, fundamental poly- 

 hedron of. E. Q. Adams. 240. 



*Hauy's law, modern extensions of. 

 E. T. Wherry. 659. 



Organic compounds, relations be- 

 tween crystalline form, chemical 

 constitution, and optical proper- 

 ties in. I, II. E. T. Wherry. 

 277, 319. 

 Economics. fCoal and iron in the 

 terms of peace. Sidney Paige. 

 101. 



fFederal Horticultural Board, work 

 of. C. L. Marlatt. 180. 



See also:. Forestry. 

 Economic Botany. fSugar, promising 

 new source of. O. W. Barrett. 

 212. 

 Electricity. *Current transformers, 

 method for testing. F. B. Sils- 

 bee. 247. 



See also: Engineering. 

 Electrochemistry. fSilver sulphide, 

 some electrical properties of. G. 

 W. Vinal. 294. 

 Engineering. *Bridge columns, tests 

 of large. J. H. Griffith and J. 

 G. Bragg. 609. 



*Electrical systems, ground connec- 

 tions for. O. S. Peters. 576. 

 Entomology. fApostega, larval affin- 

 ities of. Carl Heinrick. 180. 



fChalcidoid genus Rileya, synopsis 

 of the species. A. B. Gahan. 

 610. 



fChrysanthemum gall fly. H. L. 

 Sanford. 664. 



fCocoon spinning habit of two 

 braconids. R. A. Cushman. 610. 



fDrone bee, a microcephalic. J. A. 

 Nelson. 376. 



