CONTENTS. 
WOE. Vii 
PART I. 
PAGE 
I.—Pogotrichum hibernicum, sp. nu. By T. Jounson, D.Sc., F.L.S., 
Professor of Botany in the Royal College of Science, and Keeper 
of the Botanical Collections, Science and Art Museum, Dublin. 
(Plate I.), : : ¢ 1 
II.—Note on the Action of Bhaealitine on Slain Tete. By Sir 
Cuartzs A. Cameron, M.D., 11 
III.—The Use of the Protractor in Field Genloer By kane Aree, 
MVS AR EGAS ss: 0s : 12 
TV.—Reports on the Zaclonical @olleenone sande in homes Straits Oy 
Professor A. C. Haddon, 1888-1889. Pycnogonida (Supple- 
ment). By Gzuorce H. Carpenter, B.Sc., Lond., Assistant 
Naturalist in the Science and Art Museum, Dublin. (Plate II.), 21 
V.—On the Germination of Seedlings in the absence of Bacteria. By 
H. H. Dixon, B.A. (Abstract), . 28 
VI.—A List of some of the Rotifera of Ireland. By Miss L. S. Boescern, 
(Plates III. to VII.), é 29 
VII.—On Pitchstone and Andesite from Teor Makes in Deasest. By 
Proressor W. J. Sotuas, LL.D., D.Sc., F.R.S., . 87 
VIII.—On the Variolite and Associated Tiesncow Rocks 3 Rovadeond! 
Co. Wicklow. By Prorzssor W. J. Sorzas, LL.D., D.8c., 
11 RolSe5 : 94 
IX. _ eee of some New Cheats: of iglesia coin Memes Serta 
By Prorsssor A. C. Happon and Atice M.Suacxuzton, B.A., 116 
X.—On Hemitrypa hibernica, M‘Coy. By GrenvitiE A. J. thn, 
F.G.S., Professor of Geology in the nl College of Science 
for een (Plate VIII.), . 132 
X1I.—On the Bright Colours of Alpine alsmere By 7 aie OLY, M. ne 
D.Sc., F.R.S., 145 
XII.—S8ugg atin as to ie Possible eons of ae uerey rend for ime 
Life of Bacilli, and as to the Cause of their Small Size. By 
G. Jounstonse Stonzy, M.A., D.Sc., F.R.S., Vice-President, 
Royal Dublin Society, . . 154 
XIII.—On the Law of Gladstone and Dalene as an Open Probe. By 
Prorsssor W: J. Sortzas, D.Sc., LL.D., F.R.S. (Abstract), 157 
A 2 
