iv Contends. 
PART II. 
PAGE 
XV.—The Carbonic Anhydride of the Atmosphere. By Prorsssor E. A. 
Lerts, D.Sc., Pu.D., and R. F. pee F.1.C., F.C.S. (Plates 
XVI. to XVIII), | eee ee iO, 
PART III. 
XVI.—Collembola from Franz-Josef Land (collected by Mr. W. 8. 
Bruce, 1896-97). By Grorcr H. Carrrnrrr, B.Sc. 
(Lond. ), Assistant Naturalist in the Science and Art Museum, 
Dublin, . é 271 
XVII.—Pantopoda from the rene Sens aeadleee by Mr. W. 8. Fiano, 
1897-98). By Grorcr H. Carpenter, B.Sc. (Lond. ‘. 
Assistant Naturalist in the Science and Art Museum, Dublin, 279 
XVIII.—A Fractionating Rain-Gauge. By J. JOLY, D.Sc., F.R.S., 
Hon. Sec. , Royal Dublin Society, . 283 
XIX.—On the Occurrence of Cyanogen Componnda | in Coal- Gas, ae 
of the Spectrum of Cyanogen in that of the Oxy-Coal-Gas 
Flame. By W.N. ae F.R.S., oven College of 
Science, Dublin, . : 289 
XX.—Theory of the Order of romoten of Silicates in Yguestis 
Rocks. By J. Jouy, DSc), BRIS: Hon: Sec: “Royal 
Dublin Society, Professor of Geology and Miner 
Trinity College, Dublin, . C 298 
XXI.—Recent Analysis of the Dublin Gas Supply, and Onsen 
thereon. By J. Emerson Ruynotps, M.D., D.S8c., 
F.R.S., Professor of Chemistry, Trinity College, Dublin, . - 9304 
XXITI.—On certain Rocks styled ‘‘ Felstones,’’ occurring as Dykes in 
the County of Donegal. By GrenviLLE Te Coin, 
M.R.I.A., F.G.S., and J. A. Cunntnenam, A.R.C.Sc.1., 
B.A. (Plates XIX. and XX.), ¢ 314 
XXIII.—On the Inner Mechanism of Sedinientaion “(prelinineee 
Note). By J. Jory, D.Sc., F.R.S., Hon. Sec., Royal 
Dublin Society, Professor of Geology and me 
Trinity College, Dublin, . 25 
XXIV.—On the Nature and Speed of fine Ghensfecll @ianees ticch 
occur in Mixtures of Sewage and Sea-water. By Pror. 
K. A. Lerrs, D.Sc., Pu.D.; R. F. Buaxn, F.1.C., F.C.S.; 
W. Caupwett, BoA: ; and J. Haw THORNE, B.A., .- 6 3ee) 
XXV.—Studies in the Chemical Analysis of Fresh and Salt Waters. 
Part I.—Applications of the Aération Method of Analysis to 
the Study of River Waters. By W. E. Aprenny, D.Sc, 
A.R.C.Sce.1., F.1.C., Curator, and Examiner in Chemistry, 
in the Royal University of Treland, Dublinyea : 346 
XXVI.—Notes on Temperature Observations made at Dunsink One 
vatory during the Eclipse of the Sun on es 28, 1900. By 
C. Martin. (Plate XXI.), . “ 362 
XXVII.—Actinometric Observations of the Solar Blip. By Sis 
Rosert Beynert, Sch., T.C.D., 5 c 5 SOE 
XXVITI.—Influence of Pressure on the Seamtion of silicates in Igneous 
Rocks. By J. Jouy, M.A., D.Sc., F.R.S., Hon. Sec., 
Royal Dublin Society, Professor of Geology and] Maneraleey) 
in the University of Dublin, . A 378 
