*74, 
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78. 
79. 
80. 
31 
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. Structure of the heart of lungless salamanders, 10 m..H. L. Bruner. 
The pulmonary arch of lungless salamanders, 12 m..Miss MacWoldt. 
Methods of staining to show centrosomes in egg cells. (Illus- 
THEDINIOS) Fed ones nega mocks CD On Oo AON CIO EOE eA L. J. Rettger. 
An instance of bird) ferocity, 2M). < css 6c... sce ces G. Culbertson. 
ASE VISION OLetnesSenUsHLO, LOMME c). 5 cccicctelesies osiclecie acre c R. E. Call. 
Material for the study of variation in Etheostoma caprodes, 
LEVITT Seay sroey sds eee ofa aie costal eucts/sieasie.s \e si0.e!e, slo wie! 6-8 wists J. N. Moenkhaus. 
OTA AMMO CAVE Lat A, Leh TIN in «2 bici'eie)e! orciela sie) oie! sieie e's C. H. Higenmann. 
The eyes of the Amblyopsidae, 15 m............ C. H. Eigenmann. 
A new species of blind fishes from the caves of Missouri, 
5) Tish.4 eb Road che COG OC do a0 CO toe tin DOO Donec C. H. EHigenmann. 
The habits of Amblyopsis, 15 m.:............. : ...C. H. Higenmann. 
The blind salamanders of North America, with specimens, 
& Tihs sdaboiousenc itiggo pu eo OOO OOAOo potorrc acer C. H. Eigenmann. 
Embryology of Paragordius (Gordius) aquaticus........ A. B. Ulrey. 
GEOLOGICAL SUBJECTS. 
Formation of quicksand pockets in the blue clay of South 
EVETI Comoe BIN yeicn ace ctatelorcie tetas la a acdra lel cle lereiei’. se tetee sje s W. M. Whitten. 
MH CAGAGVSIMALS Tsoi suse ai we aleisic oie ieieis's sic ve cvisiecla'e cons he Ee Balle 
Preliminary work for the approximate determination of the 
time since the retreat of the first great ice sheet, 8 m. 
G. Culbertson. 
Note on fault structure in Indiana.............. George H. Ashley. 
Notes on the geology of Mammoth Cave, 10 m........... R. E. Call. 
A section from Hanover to Vincennes, 10 m........ J. EF. Newsom. 
The Knobstone groups in the region of New Albany, 10 m. 
J. KH. Newsom. 
The upper limits of the Knobstone in the region of Borden, 
RSEUUMU Peter er Leet taper ctetena ith iehatoiclois’ che act Sisiece else! Siete vie si ee,s L. H. Jones 
Four sections across the Knobstone group, 15 m....L. F. Bennett. 
Notes on Indiina ceoloty, TOM.) he. ss bec ccs ees cs soc ts J. AePri¢e-s 
An old river channel in Spencer county, 15 m.......... A. C. Veatch. 
* Author absent; paper not presented. 
