17 



'90. Carolina parakeet in Indiana. [Auk. IX, pji. 49-o6.] 



'91. On a deposit of vertebrate fossils in Colorado. [Not pub.] 



'!)1. On Indiana shrews. [Pr. V.] 



'91. Notes on Indiana birds. [Pr. V.] 



I'.VMPUELL, D. H. 



'88 On the value of the sexual organ as a standard of classification in 



plants. ^ 



'88. Notes on the collecting and preserving of material for botanical 



instruction. 

 '89. Method of embedding and staining delicate vegetable tissues. 

 '89. Germination of the macrospores of Isoetes. 



'90. Compai'ative structure of the roots of Osniunda and Botrychium. 

 '90. Notes on the prothallium of the Osmundacea'. 

 Campbell, J. L. 



'8(5. The geodetic survey in Indiana. 



'87. The reversal of the electric current in the Holtz induction ma- 

 chine. 

 '88. The Collett glacial river. 

 '89. Dangers of the electric current. 



'91. The Kankakee and pure water for northwestern Indiana and Chi- 

 cago. [Pr. v.] 

 '91. Science and the Columbian Exposition, [Pr. V.] 

 1'ampbell, J. T. 



'91. Topographical evidence of a great and sudden diminution of the 



ancient water supply of the Wabash river. [Not pub.] 

 '91. Source of supply to medial moraines probably from the bottom of 

 the glacial channel. [Not pub.] 

 Carmax, a. p. 



'89. Magnetic permeability of nickel at low temperatures. 



'90. Transformer tests. 



'90. Note on the magnetic permeability of an impure nickel at low 



temperature. 

 '91. Heating of a dielectric in a condenser. Preliminary note. 

 Clarke, W. B. 



'89. Cremation. [N. A. .T. of H. 3d Series, Y, p. 154.] 

 '90. Hypnotism. [Report Ind. Board of Health, '90, p. 144.] 

 Conner, J. B. 



'85. Statistical investigations in Indiana. 

 Coulter, J. M. 

 '85. Progress of botanical work in Indiana. 

 '86. Origin of the Indiana flora. [Ind. Geol. Report, 1885-86, pp. 253- 



282.] 

 '87. Evolution in the vegetable kingdom, (Presidential Address.) [Am. 



N., 1888, pp, 322-335.] 

 '87. Stomata of Tillandsia usneoides. [Not pub.] 

 9 



