SPONGIDA. 79 



SLACK, H. J. Venus's Flower-basket. Intellectual Obsemer, Vol. xi. pp. 161 

 166, 1867. [ 455 



SLACK, H. J. The Nature of Sponges. Pop. Sci. Review, Vol. xi. pp. 167176, 

 1872. (Ipl.) [ 45 6 



SOLGER, B. Ueber einige der anatomischen Untersuchung zugangliche Lebens- 

 verhaltnisse der Spongien. Biolog. Centralbl. Vol. in. pp. 227 235, 1883. [457 



SOLLAS, W. J. On the Ventriculitse of the Cambridge Upper Greensand (6 new 

 Sponge-genera). Journ. Geol. Soc. London, Vol. xxix. pp. 63 79, 1873. [458 



SOLLAS, W. J. On a New Hexactinellid Sponge (Eubrochus clausus). Geol. 

 Mag. Dec. n. Vol. in. pp. 398408, 1876. (1 pi.) [459 



SOLLAS, \V. J. On Stauronema, a new Genus of Fossil Hexactinellid Sponges, 

 with a Description of its two Species, S. Carteri and S. lobata. Ann. and Mag. of 

 Nat. Hist. Ser. 4, Vol. xix. pp. 126, 1877. (5 pi.) [460 



SOLLAS, W. J. On the Changes produced in the Siliceous Skeletons of certain 

 Sponges by the Action of Caustic Potash. Ann. and Mag. of Nat. Hist. Ser. 4, Vol. 

 xx. pp. 285300, 1877. (1 pi.) [461 



SOLLAS, W. J. On Pharetrospongia StraJiani, Sollas, a fossil Holorhaphidote 

 Sponge from the Cambridge ' Coprolite ' Bed. Journ. Geol. Soc. London, Vol. 

 xxxin. pp. 242255, 1877. (1 pi. ) [462 



SOLLAS, W. J. On the Structure and Affinities of the Genus Siphonia. Journ. 

 Geol. Soc. London, Vol. xxxni. pp. 790834, 1877. (2 pi.) [463 



SOLLAS, W. J. On two New and Eemarkable Species of Cliona. Ann. and Mag. 

 of Nat. Hist. Ser. 5, Vol. i. pp. 5467, 1878. (2 pi.) [464 



SOLLAS, W. J. On the Structure and Affinities of the Genus Catagma. Ann. 

 and Mag. of ' Nat. Hist. Ser. 5, Vol. n. pp. 353364, 1878. (1 pi.) Note, ibid. Vol. 

 in. pp. 169, 170, 1879. [465 



SOLLAS, W. J. On Plectronella papillosa, a new Genus and Species of Echi- 

 nonematous Sponge. Ann. and Mag. of Nat. Hist. Ser. 5, Vol. in. pp. 17 28, 



1879. (4 pi.) [466 

 SOLLAS, W. J. On Pharetronema zingiberis, a new Genus and Species of Eenierid 



Sponge. Ann. and Mag. of Nat. Hist. Ser. 5, Vol. in. pp. 404407, 1879. (1 pi.) 



[467 



SOLLAS, W. J. On Plocamia plena, a new Genus and Species of Echinonematous 

 Sponge. Ann. and Mag. of Nat. Hist. Ser. 5, Vol. iv. pp. 4453, 1879. (2 pi.) 



[468 



SOLLAS, W. J. The Sponge-fauna of Norway; a Eeport on the Rev. A. M. 

 Norman's Collection of Sponges from the Norwegian Coast. Ann. and Mag. of 

 Nat. Hist. Ser. 5, Vol. v. pp. 130145 (2 pi.), 241259 (3 pi.), 396409 (1 pi.), 



1880. [469 

 SOLLAS, W. J. On Sponge- spicules from the Chalk of Trimmingham, Norfolk. 



Eep. Brit. Assoc. : Trans. Sect. pp. 586, 587, 1880. [470 



SOLLAS, W. J. On the Structure and Affinities of the Genus Protospongia 

 (Salter). Journ. Geol. Soc. London, Vol. xxxv. pp. 362366, 1880. (1 fig.) [471 



SOLLAS, W. J. On Astroconia Granti, a new Lyssakine Hexactinellid from the 

 Silurian Formation of Canada. Journ. Geol. Soc. London, Vol. xxxvi. pp. 254 

 260, 1881. (fig.) [472 



SOLLAS, W. J. Note on the Occurrence of Sponge-spicules in Chert from the 

 Carboniferous Limestone of Ireland. Ann. and Mag. of Nat. Hist. Ser. 5, Vol. vn. 

 pp. 141143, 1881. [473 



SOLLAS, W. J. The Sponge-fauna of Norway; a Eeport on the Eev. A. M. 

 Norman's Collection of Sponges from the Norwegian Coast. Ann. and Mag. of 

 Nat. Hist. Ser. 5, Vol. ix. pp. 141166, 426453, 1882. (3 pi.) [474 



SOLLAS, W. J. On the Ventriculite Sponges. Dixon's Geology of Sussex, 1878, 

 pp. 448-455. [475 



SOLLAS, W. J. On the Foraminifera and Sponges of the Cambridge Upper 

 Greensand. Geol. Mag. Vol. x. pp. 268274, 1873. Proc. Cambr. Phil. Soc. Vol. 

 ii. pp. 299, 300, 1876. ' [476 



