630 



INDEX 



Fossil mammals of the Fort Union. 



J. W. GiDLEY. 203. 



*Re('uirent Tropidoleptus zones of the 

 Upper Devonian in New York. H. 

 S. Williams. 199. 

 *Upper Cretaceous and Eocene floras 

 of South Carolina and Georgia. 

 E. W. Berry. 330. 



References: 147,207,420. 

 Pnllwlogy. *The cause of tapeworm 

 cysts in mutton. B. H. Ransom. 

 123. 



References: 380. 

 Petrography. Petrographic evidence 

 on the origin of the Catahoula 

 sandstone. M. I. Goldman. 296. 

 Pharmacology. *Variation in the al- 

 loidal content of belladonna plants. 

 A. F. SiEvERS. lis. 

 Physical Chemistry. Determination of 

 camphor in spirits of camphor. 

 W. W. Randall. 332. 



The distribution of the chemical ele- 

 ments of the earth's crust. H. S. 

 Washington. 263. 



Electrical resistance and critical 

 ranges of pure iron. G. K. Bur- 

 gess and I. N. Kellberg. 436. 



The electromotive behavior of solu- 

 ble ' sulfides. R. C. Wells. 332. 



Equilibrium in the system: lead ace- 

 tate, lead oxide, water. R. F. 

 Jackson. 496. 



The physical chemistry of photog- 

 raphy. C. E. K. Mees. 264. 



Reactions of ions and molecules of 

 acids, bases and salts. S. F. Agree. 

 332. 



Reactions of propyliodide with so- 

 dium phonolate. J. H. Shrader. 

 332. 



A thermoelectric method to deter- 

 mine the purity of platinum ware. 

 G. K. Burgess and P. D. Sale. 

 282. 



Thermal dehydration of stilbite, etc. 

 H. E. Merwin. 494. 



The hydration of Portland cement. 



A. A. Klein and A. J. Phillips. 



573. 

 Testing of sugars. J. F. Bates and 



F. P. Phelps. 317. 



Physical Metallurgy. Finishing tem- 

 perature and properties of rails. 



G. K. Burgess, J. J. Crowe, H. 

 S. Rawdon and R. G. Walten- 

 berg. 353. 



Physics. Astronomical photography 

 and the Schumann region. K. 

 Burns. 333. 



Avogadro's constant and atmospheric 

 transparency. F. E. Fowle. 529. 



The brightness of optical images. 

 P. G. Nutting. 129. 



Brownian movement and molecular 

 reality. J. Perrin. 127, 259. 



The Australian meeting of the Brit- 

 ish Association. L. J. Briggs. 

 589. 



The emissivity of metals and oxides, 

 II : Measurements with the micro- 

 pyrometer. G. K. Burgess and 

 R. G. Waltenberg. 566. 



A vibration electrometer. H. L. Cur- 

 tis. 567. , 



Measurements on standards of radia- 

 tion in absolute value. W. W. 



COBLENTZ. 565. 



Calorimeter jacket design. W. P. 



White. 334. 

 Chromatic aberration of the human 



eye. P. G. Nutting. 385. 

 Color photography. F. E. Wright. 



333. 

 Combustion calorimetry. H. C. Dick- 

 inson. 434. 

 The emissivity of metals and oxides. 



G. K. Burgess and P. D. Fogte. 



279. 

 Expansion of liquid metals. A. L. 



Day. 88. 

 Extreme forms of thermopiles. W. 



W. Coblentz. 126. 



* Abstracts. 



