'!)0. A set of resistance coils and AVheatstone's bridge. 



'91. An adjustment for the control magnet on a mirror galvanometer. 



'91. A combined Wheatstone's bridge and potentiometer. 

 Xef, J. r. 



'87. On carboxylated derivatives of ben/.oquinone. [.lourn. Loud. 

 Chem. Soc, 1888, p. 428.] 



'87. On chloranil. [B. d. c. G., 1887, p. 2027.] 



'88. The constitution of the anilic acids. [Am. C. J., 18S!t, p. 17.] 



'88. On tautomeric compounds. [Am. C. J., 1S89, p. 1.] 

 New UN, C. E. 



'90. Some new crustacean fossils. 



Ne\V80M, J. F. 



'90. A review of the Niagara group in Bartholomew county, Ind. 

 '90. Shelby county " Earthquake.'' 



NOYES, W. A. 



'87. Beta-nitro-para-toluic acid. [Am. C. .1., N, p. 472.] 



'88. On the atomic weight of oxygen. [Am. C. J., XI, p. 1-35.] 



'89. Atomic weight of oxygen. [Am. C. J., XII, p. 441.] 



'90. Detection and estimation of titanium. [.T. of A. C, V, p. 39.] 



'91. Di-benzyl carbinamine. [Am. C. .1., XIV, p. 22."), and I'r. N.] 



'91. The character of well-waters in a thickly populated area. [Pr. Y.] 



NoYES, W. A., and Chas. Walker. 



'80. On the oxidation of paraxylene-sulphamide by potassium ferri- 

 cyanide. [Am. C. J., IX, p. 9.3.] 



NoYE.s, W. A., and AY. B. Wiley. 



'88. On para-nitro-ortho-sulphamine-benzoic acid. [Am. C. J., XI, 

 p. 161.] 



O^ijoii.x, H. L. 



'86. Osphradium in Crepidula. [Am. :M. M., Apl., 18S7, p. (i.] 



Owen, D. A. 



'87. A geological section of .lohnson county, Ind. 



'91. Strange development of stomata upon Carya alba caused by phyl- 

 loxera. [Pr. v.] 

 '91. Some observations upon Heloderma suspecta. [Pr. \'.] 



OWEX, KiCITARL). 



'8.3. Sketch of the work accomplished for natural and jihysical science 

 in Indiana. 

 Palmer, Chase. 



'89. On sulphophenyl-propionic acid. 

 Phillips, A. E. 



'89. The portable water supply of the City of New York. 

 Phinxey, a. J. 



'86. Natural gas and petroleum. 



