GEOGRAPHICAL DISTRIBUTION. 
Moll . 37 
J. Gwyn Jeffreys gives some notes concerning the acclimatation of 
edible Mollusks ; Nature, xxvii. p. 510. 
Litorina litorea found ou Long Island ; Prime, Am. Nat. xvi. 1882, 
p. 737. 
Venus mercenaria (L.) acclimatized at the mouth of the Dee ; Marrat, 
Nachr. mal. Ges. 1883, p. 116. 
Acclimatation of Ostrea angulata (Lam., as Gryphcea) on the south- 
western coast of France ; J. Brock, Biol. Centralbl. iii. pp. 291 & 292. 
K. Mobius gives an account of attempts to plant oysters from the 
mouth of the Lawrence River, where the wator is less salted, in the 
Baltic, in the years 1880-82 ; the oysters lived and increased in size, but 
apparently did not multiply : Circular des deutschen Fischerei Yereins, 
1883, No. 2, pp. 68-71; transl. in Bull. U. S. Fish. Comm. iii. pp. 213-217. 
R. Stearns gives an accouut of an unsuccessful experiment to bring 
some large edible Bivalves of the west c6ast, Schizothccrus nuttalli 
(Conrad), Saxidomus nuttalli (Conrad), and Glycymeris generosa (Gould), 
alive to the east coast of North America ; Bull. U. S. Fish. Comm. iii. 
pp. 353-362. 
Use by Man. 
A. T. de Rociiebrune has commenced a separate treatise on the 
employment of Mollusca by aucient and modern peoples [title, supra] ; 
the first part treats of the Americans. 
F. Winslow gives, in his “ Catalogue of Economic Mollusca.'' an enu- 
meration of all the species of North America which are of practical use 
for man, and some interesting data concerning the pecuniary value which 
they represent ; this amounts to about 14,000,000 dollars (13,000,000 of 
which belong to oysters alone). 
A few critical notes on the Mollusca in the International Fisheries 
Exhibition at London, especially oysters and Buccinidce , by J. Gwyn 
Jeffreys, Ann. N. H. (5) xii. pp. 16-20. 
E. Ingersoll publishes valuable historical notes concerning ‘ wampum,’ 
pieces of Venus mercenaria (L.) and 2 species of Fulgur ; its 
manufacture and commercial use during former centuries in North 
America : Am. Nat. xvii. pp. 467-479 ; abstract in Nachr. mal. Ges. 
1883, pp. 87-89. 
Particulars of cameo-cutting from the shells of Cassis , taken from 
Simmonds’s “ Commercial Products of the Sea,” in Tryon’s “ Structural 
and Systematic Conchology,” ii. pp. 200 &201. 
W. H. Dale publishes a lecture on pearls and pearl-fisheries, which 
contains many very interesting historical, geographical, and technical 
particulars, in Am. Nat. xvii. pp. 579-587 & 731-745. 
Note on the pearl-fishery at the Bahrein Islands in the Persian Gulf, 
by E. Schlagintweit in “ Osterreichische Monatsschrift fiir den Orient,” 
ix. p. 98 ; abstract in Nachr. mal. Ges. 1883, pp. 153-156. 
Notes ou pearls and pearl-fishing in the Gulf of California, by J. 
Sanchez, in Nat. Mex. v. [1880] pp. 10-13 ; see also Dali, Science, 1883, 
No. 13, and Kobelt, Nachr. mal. Ges. 1883, pp. 60 & 116. 
