Table of Contents. 



VOLUME XIX. 



Page. 



Officers of the Society, 1 897-1 901 ii 



Contents of Volume XIX iii-iv 



Scientific Articles 1-2^4 



Article I. — The Myxomycetes of the Miami Valley, Ohio. Fourth 



Paper. By Prof. A. P. Morgan. (PI. I-III) 1-44 



Article II.— On the Correct Position of the Aperture in Planorbis. 



By Frank C. Baker, B. S. (Two figures in the text) 45-48 



Article III. Diemyctylus viridescens var. vittatus, a new variety of 



the Red-Spotted Triton. By Prof. H. Garman. (Three figures 



in the text) 49-51 



Article IV. — Some Notes on the Mammals of Mammoth Cave, 



Kentucky. By Samuel N. Rhoads.. 53-61 



Article V. — An Odonate Nymph from a Thermal Spring. By D. S. 



KELEICOTT. (Two figures in the text) 63-65 



Article VI.— Catalogue of the Odonata of Ohio. Part III. By D. 



S. Keeeicott 66-71 



Article VII. — On the Pulsations of the Molluscan Heart. By Frank 



C. Baker, B. S 73-78 



Article VIII. — Note on the Flora of Mammoth Cave, Kentucky. By 



R. Eeesworth Caee, Ph. D 79-80 



Article IX.— Notes on Radulse. By Frakk C. Baker. (PI. IV-V). 81-92 

 Article X. — A Brief Description of the Section of Devonian Rocks 



exposed in the vicinity of Rock Island, Ills., with a Statement 



of the Nature of its Fish Remains. By J. A. Udden, Ph. D. . 93-95 

 Article XI. — Description of a Devonian Ichthyodorulite, Heter- 



acanthus uddeni, ri. sp., from Buffalo, Iowa. By Josua 



Lindahe, Ph. D. (PI. VI) 95-98 



Article XII. — Manual of the Paleontology of the Cincinnati Group. 



By Joseph F. James, M. D. Part VIII 99-118 



Article XIII. — A Study of the Copepoda, found in the vicinity of 



Lincoln, Neb. By A. D. Brewer, A. M. (PI. VII) 1 19-138 



Arricle XIV. — Coleopterological Notes — Faunal changes in the 



vicinity of Cincinnati, Ohio. By Charles Dury 139-141 



Article XV. — Zoological Miscellany — Notes by ChareES Dury. . . 142-145 



Notes by Josua Lindahe.. 146 



