ati: lla 
CONTENTS, 
Dr. W. B. Carrenter’s further Researches on Eozoon Canadense,........ : 
Rey. Dr. Joun Gratncer on the Fossils of the Posttertiary Deposits of Tre- 
RAHI Pi aMHieiseiee 86 05% AY siti Paik ite NTE eet Aetatee, TRAE RS Pe i 
ay Epwarp T. HarpMan on some new Localities for Upper Boulder-clay in 
tind] RSS ee ier cgeciicno croc ICC cincErOnIDIar :ciior 
on the Geological Structure of the Tyrone Coal- 
Jel) OS Oe sage diddichticirisig Ogi IniSGnicIvig Dino) IgidIgigre OIcISIGUIGIGIGInInIpIGpinicigin 
; on the Age and Mode of Formation of Lough 
Neagh, Ireland..........scsaeectbeeeceeeieeeaenee Buc Phbyet (ob saueinsniaee 
Professor HARKNESS on the Geology of the, N:E. of Treland..3 0.0.6.5. iar 
Professor Huu on the Progress of the Geological Survey of Iveland....... ; 
Mr. J. Gwyn Jerrreys’s Note on the so-called Crag of Bridlington........ 
Sir Wittoucusy Jones's Notes on Cavern Exploration, by M. Emilion 
Frossard, in the Vallée de Campan, Hautes-Pyrénées, France............ 
Mr. G. H. Kryanan on Geological Maps and Sections of West Galway and 
South-west Mayo ...... Me Coa Shee no OAc oo Sapo COs ODoCtnIC aaDD : 
Mr. G. Lanerry on the Occurrence of the Middle Lias at Ballycastle ...... 
Dr. H. AtteynE Nicuonson and Mr. W. H. Exxis on a Remarkable Frag- 
ment of Silicified Wood from the Rocky Mountains ..........e0.s0000s ‘ 
on Favistella stellata and Favistella calicina, with 
Notes on the Affinities of Favistella and allied Genera .........sseeeeeee 
Description of Species of Alecto and Hippothoa 
from the Lower Silurian Rocks of Ohio, with a Description of Aulopora 
avachnoidea ....sseees “LO ARES eee ys GIG Ok crc Stace ies. Acpun toicad cick cao 
— Descriptions of New Species of Polyzoa from 
the Lower and Upper Silurian Rocks of North America ....,.........+. 
— Descriptions of New Species of Cystiphyllum 
from the Devonian Rocks of North America ........:sesenesesansenens 
Mr. W. CuHanpier Roserrts on the Columnar Form of Basalt........... é 
Mr. R. Russexx on the Permian Breccias of the Country near Whitehaven. . 
Professor JAMES THOMSON on the Jointed Prismatic Structure of the Giant’s 
Wauseway oeersiesess ie: alo clots DCEO Do CET GEER cae ted : 
My, Wriu1am A. Trax on Geological Sections in the co. Down .......... 
Dr. VAUGHAN on Physics of the Internal Harth..............eeeeesee nes - 
Mr. JosepH Wnricut on the Discovery of Microzoa in the Chalk-flints of the 
Worth of Ireland ......080G0W isi e eb beet eet e tener acne senas Geeterdiate 
BIOLOGY. 
Address by Professor Peter REDFERN, M.D., President of the Section. ..... 
Borany. 
Dr. Hooxer’s Addvess to the Department of Botany and Zoology.......... 
Dr. Hcserr Airy’s Note on Variation of Leaf-Arrangement...,..... ees 
Mr. Wint1am ARcHER’s Notes on Apothecia « occurring in some Scytonema- 
tous and Sirosiphonaceous Algal Species, in addition to those previously 
PS VTTMMCR es stepsivisieisietsaarieere ss eaptecrsietere s(elsty Temi ptare Ce tee rere tees nese 
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