«] 



- XXXI-XL. 



Petrographic Methods. Johann- 

 Weinschenk and 

 irk, 33. 511. 



— m work, oblique il- 

 lumination in. Wright, 35) 



id, Wright, 35. *33- 



— Microscopic Research. Wright. 



33. 51* 

 Petrographic physicalisch-cnem- 



>eke, 40, 664. 

 Petrography, microscopical, 



Wright, 36. - 

 Petrology. Hatch and Rastall, 35. 



464: Mennell, 36. 420. 



— of the Blue Hills, Mass., War- 

 ren. 36, 



Philippine Islands, Bureau oi Sci- 

 ence. Ann. report. Cox. 37, 285. 



Phillips, A. H., zincite cr; 



31, 464: Mineralogy. 35, 113; 

 model to show symmetr 

 crystal-. 36, 30. 



Phillips. F. C. Chemical German. 

 36, 646; 40. 



Phosphorescence, photo-electric. 

 Batman, 34. 133- 



Photochemical Investigations. 



itnikow, 36, 422. 



Photoelectric effect. Page. 36, 501. 



— ettect of potassium, Hallwachs 

 and Wiedmann, 37, 4 



suppression of, Freden- 



hagen and Kiistner. 37, 276. 



— phosphorescence. Butman. 34, 



Photo-Electricity, Allen. 37, 348. 



Photo-electrons. velocities. 

 Hughes, 34, 481. 



Photographic atlas of terrestrial 

 relief, 31, 3 



Photography of fossils by re- 

 flected light. Burling. 31, 00; by 

 Field, ?g. 



Physical Geography, Du Toit. 34, 



— Laboratory Guide. Reev- . 35, 

 iot. 



— measurements. Duff and Ewell, 



36. ' 



— Review. 35. 



— Tables, Smithsonian, Fowle, 

 39. 



Physics. Applied, Hawkins, 33, 



• liege. Reed and Gut! 



— ¥ Millikan and 



}6, 



Physics. General, Culler, 39, 315; 

 Watson, 35. 104. 



— Laboratory Manual. Nichols 

 and Blaker, 33. 380. 



Problems, Jones and Tat- 



nall. 33. 370. 



— lecture experiments in, kivi- 

 der. 32, 320. 



— Mathematical. Houston, 35, 

 32& 



— Molecular. Crowther, 39, 314. 



— Practical, Black and Davis, 36, 

 566. 



— Principles of, Magie, 34, 305. 



— Teaching of. Mann, 33, 5 



— for Technical Students, 37, 480. 



— Text-book. Duff. 34, 483; 

 Mann and Twiss, 32, 68; Spin- 

 ney, 33, 157- 



Physik der Erde. Rudzki. 32, 72. 



— Medizinische, Fischer, 36, 648. 



— die Stellung der neueren, 

 Planck, 31, 232. 



Physiographic terms, new, 



Cairnes, 34. 7?- 

 Physiography, College. Tarr and 



Martin, 39, 132. 



— of Newfoundland. Twenhofel. 



33, 1. 



— sub-oceanic, of No. Atlantic 

 Ocean, Hull, 34. 403. 



Physiology, Nutritional, Stiles, 35, 

 117. 



Pierce, C. A., Direct and Alternat- 

 ing Current Manual, 32, 305. 



Pine Rock cave. New Haven. 

 Conn., MacCurdy, 38, 511. 



Pirsson, L. V., geology of Tripyr- 

 amid Mountain. N. H., 31, 260; 

 petrography of same. 31, 405; 

 deep boring in Bermuda, 36, 70; 

 Oriskany formation in Maine. 

 37, 221; geology of Bermuda, 

 igneous platform. 38, 180: pe- 

 trology of lavas. 38, 331; micro- 

 'ical characters of volcanic 

 tuffs, 40, 191; Text Book of Ge- 

 ology, 40, 663. 



Pittsburgh Flood Commission, re- 

 port. 35, 107. 



Planeten, das Schicksal der. Ar- 

 nius, 33, 167. 



Planetologia. 36, 428. 



Plant Animal-. Keeble, 32, 326. 



— new from Brazil, White. 35, 



— tissue, Carbonifi rbour, 



39. 173. 



