TABLE OF CONTENTS. xl 
PAGE 
On the Action of Iodoform on Potassic Sulphydrate, by H. Ende- 
mann and Oscar Loew (February 10, 1878)..............,.,.00- 15 
rhe Airave Breathe.(May) 12: 1878) s.csacsine s owswieidiedicie ests dow we oe 20 (42) 
WILLIAM FALKE. 
Renal and Urinary Calculi (December 8, 1873)...............00cceee 81 
Experiments with Poisons on Limulus (January 26, 1874) .......... 98 
SineAdipocere (February, 9-874) <5... 2)<\00n 5 sve.c alslasin b/s ¢.0,05 occ 0 oes Cae un 
Physical and Vital Theories of Fermentation (May 11, 1874)........ 148 
CHARLES FRED. HARTT. 
Remarks on the Geological Results of his Recent Visit to Brazil 
OCU OUI Re ae 2A ace Sy Ayia ED OE 14 (46) 
Aboriginal Manufacture of Pottery (February 16, 1874)............. 105 
W. W. HENSHAW. 
An Annotated List of the Birds of Utah (title) (May 18, 1874)... ... 145 
W. P. JENNEY. 
Account of Recent Explorations in the Geology of Western Texas 
(Octoper 20. 187s). ois scen |) [ERME eat adske be) paosate fuse Ve): 68 
GEORGE N. LAWRENCE, 
Descriptions of Six Supposed New Species of American Birds (title) 
ORRRRETEE OS DUES LAN, oiclal 6 MEEVEE SPARCRTIRE oon 6 5u:S Lovee sroe ds on bd 99° 
ALBERT R, LEEDS. 
On the Compounds of Tungsten (December 8, 1878)................. 81 
Mizariniasia, Lest (Bebruary 9; USA)... cwecscc ce cecs hl eccs ance sess. 100 
On the Dissociation of Certain Compounds at very low Temperatures 
(henmuany) 9, ROTA. Js). Stoel I Salk os clvetorosgquel. Lis 102 
W. GOOLD LEVISON, 
Note on the Production of Ammonia in Nitric Acid Batteries (March 
SOC Aer) ee eso ANS eS okie oh a Tle ein wieisia Seicieae sie seieeaeor ck 2 (34) 
On a Simple Connective for Battery ‘Gaxpone (April 18, 1874) ..... .. 13 
BENJAMIN N. MARTIN. 
Review of the Life and Labors of Rev. John Bachman (March 2, 
WOVE) Mr sents bs tHe atl. Bevesy.'2 pasereteenat. Vo aiehteiid. Peete’ diimvcrck aah 117 
DANIEL S. MARTIN, 
Rieag Me CRS TORR AT oh MUA On) i aceai wigs v, csp cis, 6p n'6,0.0:5 me's wigi'ele\s aretaiainia'ss 20 
On the Rhombic Crystallization of Graphite (May 18, 1874)......... 145 
ORAN W. MORRIS. 
The Meteorology of the Month of January, 1873 (February 10, 
Petre perrcee wok nets | Sic cv otiaubnismir a «mnie s= woe MaeteiMare cee stat siorcce! ofa gana be 
