36 
Index to the Proceedings and Transactions of the 
Sodium; Analysis of the Spectrum of. 
—Stoney, G. Johnstone. Proc. vii., 
1891-92, pp. 204-217. 
Solar Corona, Instruments for Photo¬ 
graphing during Total Solar Eclipses. 
—Taylor, Albert. Proc. viii., 1893- 
98, pp. 272-278. 
Solar Spot; An Abnormal one.—Erck, 
Wentworth. Proc. iv., 1883-85, pp. 
491-492. 
SoLLAS, W. J.—A Classification of the 
Sponges. Proc. v., 1886-87, p. 112. 
*-The Coecal Processes’’ of the 
Shells of Brachiopods interpreted as 
Sense-organs. Proc. v., 1886-87, 
pp. 318-320. 
--A Contribution to the History of 
Flints. Proc. vi., 1888-90, pp. 1-5. 
-On a Fragment of Garnet Hornfels. 
Proc. Yii., 1891-92, pp. 48-54. 
-On the Geodine Genera, Synops 
Vosm., and Siclonops. A Correction. 
Proc. Yi., 1888-90, pp. 276-277. 
-On an Hexactinellid Sponge from 
the Gault, and a Lithistid from the 
Lias of England. Proc. iv., 1883- 
85, pp. 443-446. 
-On Homotceclius {Arclmocidaris 
Harteana, Baily), a New Genus of 
Palaeozoic Echinoids. Proc. yii., 
1891-92, pp. 152-154. 
-On the Law of Gladstone and Dale 
as an Optical Probe. {Abstract only,) 
Proc. Yiii., 1893-98, pp. 157-166. 
-A Map to show the Distribution of 
Eskers in Ireland. Trans, v., 1893- 
96, pp. 785-821. 
-On a Modification of Sprengel’s 
Apparatus for Determining the Speci¬ 
fic GraYity of Solids. Proc. v., 1886- 
87, pp. 623-625. 
-Note on the Artificial Deposition 
of Crystals of Calcite on Spicules of 
a Calci-Sponge. Proc. y., 1886-87, 
p. 73. 
-On the Origin of Freshwater Fau¬ 
nas: A Study in Evolution. Trans. 
III., 1883-87, pp. 87-118. 
-,-Abstract. Proc. iy., 1883-85, 
pp. 238-240. 
SoLLAs, W. J.—On the Physical Cha¬ 
racters of Calcareous and Siliceous 
Sponge-Spicules and other Struc¬ 
tures. Proc. IY., 1883—85, pp. 374- 
392. 
-On Pitchstone and Andesite from 
Tertiary Dykes in Donegal. Proc. 
YIII., 1893-98, pp. 87-93. 
-Preliminary Account of the Soda- 
Gi’anites and associated Dvkes of Co. 
Wicklow. Proc. yi., 1888-90, pp. 
263-271. 
-Preliminary Account of the Tetrac- 
t/ 
tinellid Sponges dredged by H.M.S. 
Challenger, 1872-76.—Part i. Cho- 
ristida. Proc. y., 1886-87, pp. 177- 
199. 
-Preliminary Observations on the 
Granites of Wicklow and Down. 
Proc. YI., 1888-90, pp. 257-258. 
-On Fuchsia Mac Henryi^ a New 
Fossil from the Cambrian Bocks of 
Howth. Proc. YIII., 1893-98, pp. 
297-303. 
-On a Separating Ap]Daratus for Use 
with heavy Fluids. Proc. v., 1886- 
87, pp. 621-622. 
-On a Specimen of Slate from Bray 
Head, traversed by the Structure 
known as Oldhamia radiata, Proc. 
Y., 1886-87, pp. 355-357. 
-On the Structure and Origin of 
the Quartzite Bocks in the Neighbour¬ 
hood of Dublin. Proc. YII., 1891-92, 
pp. 169—188. 
-Supplementary Bemarks on the 
previous Paper on Oldhamia, Proc. 
Y., 1886-87, pp. 358-359. 
-On the Variolite and associated 
Igneous Bocks of Boundwood, Co. 
Wicklow. Proc. viii., 1893-98, pp. 
94-115. 
SoLLAS, W. J., and Cole, Grenville A. 
J.—The Origin of certain Marbles: 
A Suggestion. Proc. vii., 1891-92, 
pp. 124-126. 
SoLLAS, W. J., andPRAEaER, B. Lloyd. 
—Bog-flow in Kerry. Proc. viii., 
1893-98, pp. 475-508. 
