INDEX. 



A. 



Acid, Diraethyluric, 256. 

 Acid, Phosphoric, as Magnesic Py- 

 rophosphate, 53. 

 Alkaline Phosphates, 59. 

 Phosphotungstates, 64. 

 Phosphomolyhdates, 66. 

 Acids, Complex Inorganic, Re- 

 searches on, 1. 

 Ten to Four Sodium Salt, 4-7. 

 Twelve to Five Sodium Salt, 



8, 9. 

 Potassic Tungstates, 10, 11. 

 Amnionic Tungstates, 12. 

 Zinc Salts, 13. 

 Antimony, Atomic Weight of, 251. 

 Appropriations, 368, 370, 373, 374. 

 Architect to Underwriter, Relation 



of, 374. 

 Architecture, Columnar, of the 

 Egyptians, 313. 

 Derivation of Doric Order from 



Egyptian Prototypes, 313. 

 Classification of Egyptian Col- 

 umns, 330. 

 Aster Potosinus, 32. 



(Machneranthera) gymnocepha- 

 lus, 32. 

 Astragalus reventus, 46. 



Howelli. 46. 

 Astronomical Level, New Form of, 

 372. 



B. 



Baccharis Plummerae, 48. 



Potosina, 33. 



ramiflora, 33. 



Seemanni, 33. 

 Bahia anthemoides, 40. 

 Barroetea setosa, 29. 



subuligera, 29. 

 Benzaldehydes, Substituted, 267. 

 Bigelovia oppositifolia, 32. 



Biographical Notices: — 



William T. Andrews, 377. 



Samuel Greene Arnold, 380. 



Erastus B. Bigelow, 378. 



Thomas M. Brewer, 378. 



Heinrich Wilhelm Dove, 383. 



Isaac Hays, 380. 



James Clerk Maxwell, 391. 



William T. Roepper, 381. 



Eugene Emmanuel Viollet-le« 

 Due, 394. 

 Botanical Contributions, 25. 

 Breweria grandiflora, 49. 

 Brickellia Palmeri, 30. 



Parryi, 31. 



hynienochlsena, 29. 



squamulosa, 30. 



thyrsiflora, 30. 



Brombenzylbromides, Relative Re- 



placeability of Bromine in 



Three, 372. 



Bromine, Action on Toluol and 



some of its Derivatives, 202. 



c. 



Calea albida, 38. 



(Tephrocalea) discolor, 38. 



(Tephrocalea) tomentosa, 38. 

 Cardamine Clematitis, 45. 

 Carpenteria Californica, 42. 

 Coefficient of Expansion of Nickel- 

 plated Steel -Bars, 370. 

 Color, Effect of Distance on Appre- 

 ciation of, 229. 

 Collinsia linearis, 50. 



Rattani, 50. 

 Comets of Minimum Perihelion 



Distance, 376. 

 Committees, 367, 369, 370, 371. 

 Communications: — 



Edward Atkinson, 374. 



II. P. Bowditoh, -J± 



F. E. Cabot, 219, 222. 



Josiah P. Cooke, Jr., 251, 375. 



