FISHERIES CATALOGUE. 225 



Model showing French Bouchot system of mussel 

 culture, in the Bay of Aiguillon. 



Model of the floor of the Irish Sea. 



Samples of fishery reports, monographs, and plates 

 from other countries (in side case). 



Plan of the courses taken by drift bottles set free to 

 determine the currents, specimen of drift bottle, 

 and samples of the records returned. 



On one of the tables will be found a series of micro- 

 scopes showing fish eggs, and embryos, young stages of 

 shrimps, crabs, etc., the minute structure of parts of 

 fishes, and the microscopic food of fish and shell-fish. 



Tow-nets, travelling microscope, and other appliances for 

 collecting surface life of the ocean from vessels steaming 

 at full speed, are laid out on a table in the Fisheries 

 Boom. 



Alongside is Prof. Herdman's folding Deck-table fitted 

 up with microscope, dissecting dishes, note-books, &c, 

 for biological work at sea. 



