72. The Eye of Typhlomolge, from the Artesian Wells of San 
Mareosyalexags AOp mess aos eee oO ern ae se C. H. Higenmann. 
73. The Eyes of Typhlotriton Spelaeus, 10 m. 
C. H. Eigenmann and W. A. Denny. 
74. The Blind Rat of Mammoth Cave, 10 m. 
C. H. Eigenmann and James R. Slonaker. 
*75. Remarks on Birds New to the State Fauna, 10 m...... A. W. Butler. 
(Gs. AU NEmatold VW ormanvane hee enemre es... ck se es Dan J. Troyer. 
GEOLOGICAL SUBJECTS. 
77. The Geologic Relation of some St. Louis Group Caves and Sink- 
NOLS Osh Rk ag es sree Mew ee rr ee Moses N. Elrod. 
78. Jug Rock, 5 m. ic stat ae ee .Chas. R. Dryer. 
{79. The St. Ieee and the Kankakee at South Bend, 10 m. 
Chas. R. Dryer. 
80. The Meanders of the Muskatatuck at Vernon, Indiana, 5 m., 
Chas. R. Dryer. 
81. Old Vernon: A Geographical Blunder, 5 m.......... Chas. R. Dryer. 
S2. ‘Terraces of the Lower Wabash, lO m:.. ...2 5.7. sssc ces J. T. Scovell. 
So. -Dne Kankakee Valley: 10 mo ccnesee cnc oes: or cee H. T. Montgomery. 
84. Notes on the Eastern Escarpment of the Knobstone Formation 
ings Goya hen ed, Ress U0 fe 00 mee ete ete a, ha rel ara Ria ee ea 3 L. F. Bennett. 
*85. A Preglacial Channel on the Falls of Ohio, 3 m....C. E. Siebenthal. 
*86. Notes on the Pleistocene Geology of Monroe, Owen and Greene: 
Oonnties* Oe ss ws. seen a na cd ne eee C. E. Siebenthal. 
i) AnPOld= Shore “bine: brn. bees 6 oe ee eee ee ee Dine ee rrns 
88. Two Cases of Variation of Species with Horizon, 5 m..D. W. Dennis. 
89. Notes on the distribution of the Knobstone Group in Indiana, 
WADED ofehe eaten cies ier o's ot irate opalone pune tote, ede rrioace J. F. Newsom and J. A. Price. 
some “Indiana Mildews....-. 200-20. cave ores sre nee Ay Oran 
*Author absent. Paper not presented. 
+ Presented as a part of No. 83. 
{Paper read at the December meeting, 1889. Not hitherto published; included in this 
report as a valuable contribution to the State Biological Survey. 
