TABLE OF CONTENTS. 
VOLUME XX. 
Page. 
WATCET SOL LIES OCICEYicic.oi sclaeete oe iaeistee Ble icssaie|e ola sietiarg Siete © see « ii 
Coritentsrofavoliusmie NOS oe ereliee sees Se clagh: .7 rs Ob anata eae oe iii 
Sicrieial baie IAs ante Sees iat etre hen Be Aner ti coceeee cnr ae eee ee I-2 
Article I.—Observations on the efferent neurones in the electric 
lobes of Torpedo occidentalis. By Shinkishi Hatai (Py. I-III). 1-12 
Article [I.—An investigation of the Vascular System of Bdedlosto- 
Ral) epee de cc enenen ee ehct erst ntsc areietone) are ev ecaamhaversnchaahearatoieteynieve arava, winiorave: oeta 13-48 
Article III.—The Geology of Cincinnati. By J. M. NIcKLES (PI. 
Pamap. One map skete in’ the text)... 2c. 0 ccc esteecvw eas 49-100 
Article I1V.—Description of anew Bryozoan Homotrypa bassleri, n. 
sp. from the Warren Beds of the Lorraine Group. By JoHN M. 
BUIcICnHS.. (hive fgwres in the text). 6 eiiiee a wen eh wiiewiets 2 Foe 103-105 
Article V.—A Revised list of the Coleoptera observed near Cincin- 
nati, Ohio, with Notes on localities, Bibliographical references, 
and description of five new species. By CHARLES DurY. (Six 
BME Seate Me CORE Ir v5.06 ciethisa ne peGire mt. ve acc’ ein" one vlshuata eee 4 apeaioaleye 107-198 
Article VI.—Check List of the Plants of Hamilton County Ohio, 
exclusive of the Lower Cryptogams. By WALTER H. AIKEN, 199-230 
Article VII.—List of Medicinal Plants, wild or cultivated, growing 
in the vicinity of Cincinnati, Ohio, with notes as to the parts 
used for medicinal purposes. By WALTER H. AIKEN........ 231-234 
Article VIII.—Orthography of names of the Naiades. By Josua 
TU PUSA BATE GB 7s chs oy peek gene me mae Mec PRE reo ORCC rc aa r-2 35-243 
Article IX.—Pisolitic Barite. By HERMAN WUESTNER. (Four 
Gees hare Mo Gext)), 5... nes 2. <ogeie sac ee eamemaatinde, soos 245-250 
Article X.—Ecological Notes on some Coleoptera of the Cincinnati 
region, including six newspecies. By CHARLES DuRY........ 251-256 
Article XI.—Additions to the List of-Cincinnati Coleoptera. By 
EVAR S SIO WONG rere apeetesa awison nurse panacea hich asag tate yey ae ane d 257--260 
METS UOMV OUI CRONG os cys) aol w iotes wes ies Sev evones eaefereereatayee ls feign +, sejsiere oie 261-263 
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