202 THE DISPERSAL OF SHELLS. 



Liverpool ; indeed, Sir C. Lyell was even informed by 

 Mr. Broderip that the species was naturalized in the 

 woods near that city ! ^ Dr. Stearns has referred also 

 to the conveyance of Bulimi of two species to San 

 Francisco in a cargo of dye-woods from the Gulf of 

 California ; he states : 



'' The dye-woods had been hauled from the place 

 where they were cut, and piled up near the embarcadero 

 on the gulf shore, and afterwards transferred to the vessel. 

 These snails had crawled into the hollows and crevices 

 of the wood, and were discovered when the cargo was 

 unloaded and put on the wharf in San Francisco. 

 When the sticks were thrown ashore the rough handling 

 shook out the snail-shells ; many also were found in the 

 hold of the vessel after the cargo was discharged." 



Unfortunately in this case, however, none of the 

 several specimens obtained by Dr. Stearns were alive. ^ 



Foreign shells, it is curious to find, have even been 

 shipped to this country with cattle-bone. Mr. G. Norman, 

 of Hull, it appears, once " procured a great number of 

 living moUusca (apparently several species of Helix) 

 from a vessel recently arrived with cattle-bone from 

 Buenos Ayres and Montevideo, in the cargo of which 

 they abounded/' and many turned out in a garden, as 

 just mentioned, lived for several years.'' 



* "Principles," ii., p. 371 ; and compare Gray's "Turton," 1857, 

 p. 292. 



* R. E. C. Stearns, "West American Scientist," 'vii. (1891), 

 p. 108. 



^ G. Norman, " Zoologist," xii. (1854), p. 4435. 



