1886.] POSITION AND CLASSIFICATION OF SPONGES. 647 
1415, Sollas, W. J. On Plectronella papillosa, a new genus and species of 
Echinonematous Sponge. Ann. M. N. H. ser. 5, vol. iii. pp. 17-28 (1879). 
1416. ——.. Note on the Structure and Affinities of the genus Catagma. Ann. 
M. N. H. ser. 5, vol. iii. pp. 169-170 (1879). 
1417, -——. On Pharetronema zingiberis, a new genus and species of Renierid 
Sponge. Ann, M. N. H. ser. 5, vol. iii. pp. 404-407 (1879). 
1418, —~—. On Plocamia plena, a new genus and species of Echinonematous 
Sponge. Ann. M. N. H. ser. 5, vol. iv. pp. 44-53 (1879). 
Observations on Dactylocalyx pumiceus (Stutchbury), with a 
description of a new variety, Dactylocalyx stutchburyi. J. R. Mier. 
Soc, vol. ii. pp. 122-133 (1879). 
. On the replacement of Siliceous Skeletons by Carbonate of Lime. 
/ Rep. Brit. Assoc. 1879, vol. xlix. p. 350 (1879). 
[1421.] . Onthe replacement of Siliceous Skeletons by Carbonate of Lime. 
(Abstr.) J. BR. Mier. Soc. vol. iii. p. 282 (1880). 
1422. ——. On the Structure and Life-history of a Sponge. P. Bristol Nat. 
Soc. new series, vol. iii. pp. 20-37 (1880). 
The Sponge-fauna of Norway; a Report on the Rev. A. M. 
Norman’s Collection of Sponges from the Norwegian Coast. Ann. M. 
NV. H. ser. 5, vol. vy. pp. 180-145 (1880). 
The Sponge-fauna of Norway; a Report on the Rev. A. M. 
Norman’s Collection of Sponges from the Norwegian Coast. dun. M. 
NV. H. ser. 5, vol. v. pp. 241-259 (1880). 
The Sponge-fauna of Norway; a Report on the Rey. A. M. 
Norman’s Collection of Sponges from the Norwegian Coast. Ann. M. 
NV. H. ser. 5, vol. v. pp. 396-409 (1880). : 
1426. ——. On Flint Nodules from the Trimmingham Chalk. Ann. M. N. 
H, ser. 5, vol. vi. pp. 384-397 (1880). 
. On Flint Nodules from the Trimmingham Chalk. Ann, M,N. 
H., ser. 5, vol. vi. pp. 487-461 (1880). 
: . On Sponge-spicules from the Chalk of Trimmingham, Norfolk. 
Rep. Brit. Assoc, pp. 586-587 (1880). 
1429. ——. On the Structure and Affinities of the genus Protospongia (Salter). 
J. G, Soe. vol. xxxv. pp. 362-366 (1880). 
On Astroconia granti, a new Lyssakine Hexactinellid from the 
Silurian Formation of Canada. J. G. Soc. vol. xxxvii. pp. 254-260 (1881). 
On Astroconia granti,a new Lyssakine Hexactinellid from the 
Silurian Formation of Canada. J. G. Soc. vol. xxxvii. p. 480 (1881). 
Note on the occurrence of Sponge-spicules in Chert from the 
Carboniferous Limestone of Ireland. Ann. M. N. H. ser. 5, vol. vii. 
pp. 141-148 (1881). 
The Sponge-fauna of Norway; a Report on the Rey. A. M. 
Norman’s Collection of Sponges from the Norwegian Coast. Azn. M, 
NV. H. ser. 5, vol. ix. pp. 141-166 (1882). 
1434. ——. The Sponge-fauna of Norway; a Report on the Rev. A. M. 
Norman’s Collection of Sponges from the Norwegian Coast. Ann. M. 
NV. H. ser. 5, vol. ix. pp. 426-453 (1882). 
1435, ——. Sponges. Cassell’s Natural History, vol. vi. pp. 312-331 (1882). 
Description of Fossil Sponges from the Inferior Oolite and on 
some from the Great Oolite. J. G. Soc. vol. xxix. pp. 541-543 (1888). 
1487. ——. The Estuaries of the Severn and its Tributaries. An inquiry into 
the nature and origin of Tidal Sediments and Alluvial Flats. J. G. Soc. 
vol. xxix. pp. 611-626 (1883). 
1488. ——. On the origin of Freshwater Faunas. A study in Evolution. 
’ Tr, R. Dublin Soc. vol. iii. pp. 87-118 (1884). 
1419. 
1420. 
1423. 
1424. 
1425. 
