188G.] POSITION AND CLASSIFICATION OF SPONGES. 651 



■1517. Vasseur, G. Reproduction asexuelle de la Leucosolenia hotryoidea 

 {Ascandra variabilis, Haeckel). Arch. Z. exper, torn. viii. pp. 59-66 

 (1879-80). 



1518. Vejdovsky, Fr. Revisio Fauuje Bohemicse. Pars 1. Die Siisswasser- 



sehwamme Bohmens. Abh. kgl. Ges. Wiss. Bd. xii. Prag (1883). 



1519. . Prispevky k. znamostem of honbach sladkovodnich. (Contribu- 

 tions to our Knowledge of Freshwater Sponges.) (Bohemian.) SB. 

 bbhm. Ges. 1883, pp. 19-31 (1883). 



[1520.] . Contributions to the Knowledge of the Freshwater Sponges, 



with Remarks by H. J. Carter. (Transl.) Ann. M. N. H. aer. 5, 



vol. xiii. p. 9t) (1884). 

 1521. . Beinerkungen liber einige Siisswasserschwamme Bohmens. SB. 



bohm. Ges. 1884, p. 55 (1884). 

 . [1522.] . Freshwater Sponges. (Abstr.) J. E. Micr. Soc. ser. 2, vol. iv, 



pp. 242-243 (1884). 

 1523. . Beobaclitungen iiber Siisswasserschwamme. SB. bbhm. Ges. 1884, 



pp. 167-172 (1885). 

 [1524.] . Observations on some Freshwater Sponges. (Transl.) Ann. 



M. N. H. ser. 5, vol. xt. pp. 13-18 (1885). 

 .[1525.] . Observations on some Fi-eshwater Sponges. (Abstr.) J. R. 



Micr. Soc. vol. v. p 255 (1885). 

 [1526.] . Observations on Freshwater Sponges. (Abstr.) J. E. Micr. 



Soc. vol. vi. p. 257 (1880). 



1527. . Einiges iiber " Spongilla glomerata, N." Zool. Anz. Bd. ix, 



pp. 713-716(1886). 



1528. Verrill, A. E. Invertebrate Animals of Vineyard Sound. Eep. U. S. 

 Fish. Comm. vol. i. 1871-72, pp. 740-745 (1871-72). 



1529. ■ . Report on the Condition of the Sea-Fisheries on the South Coast 



of New England in 1871 and 1872. Washington (1873). 



1530. . Calcareous Sponges. Proc. Anicr. Assoc. 1873, pp. 292-293 (1873). 



1531. . Exploration of Casco Bay by the U.S. Fish Commission in 1873. 



P. Amer. Assoc, pp. 340-395 (1873). 



1532. . On new Sponges from New England. Avi. J. Sci. vol. vii. p. 501 



(1874). 



1533. . Note on Borings of a Sponge in Italian Marble {Cliona). Am. J. 



Sci. ser. 3, vol. xvi. p. 406 (1878). 



1534. . Preliminary Check-list of the Marine Invsrtebrata of the Atlantic 



Coast from Cape Cod to the Gulf of St. Lawrence. P. U. S. Nat. Mus. 

 (1879). 



1535. ■ ■. Recent Additions to the Marine Invsrtebrata of the North-eastern 



Coast of America &c.— Porifera. P. U. S. Nat. Mus. 1879, p. 204 (1879). 



•1536. . Notice of Recent Additions to the Marine Invertebrata of the 



North-eastern Coast of America, with descriptions of new Genera and 

 Species and critical remarks on others. P. U. S. Nat. Mus. p. 165 (1880). 



1537. Vogt, C. Lehrbuch der Geologic. 2 vols. (1866). 



1538. . Sur les pretendus Organismes des Meteorites. C. E. torn, xciii. 



1881, pp. 1166-1168 (1881). 



[1539.] . Sur les pretendus Organismes des Meteorites. (Abstr.) J. E. 



Micr. Soc. vol. ii. pp. 176-178 (1882). 



1540. Volkmann, G. A. Silesia subterranea. Leipzig, 1720. 



1541. Vosmaer, G. C. J. The Sponges of the Leyden Museum. — I. The 

 Family of the Dcsmacidince. Notes Lcyd. Mus. vol. ii. pp. 99-164 ( 1880). 



1542. . Aanteckeningen over Leucandra aspera, H. Bijdrage tot de 



kenuis der Kalkspouzeu. Leiden (1880). 



