NO. 5 (1922) FISHERY PUBLICATIONS 121 



of the department's operations in Palk Bay and affords a welcome 

 addition to the income of the chank clivers of that locality. In 

 1919-20, the total dried production was 6,245 lb. The whole of 

 this eventually finds its way to Singapore and thence to China. 



III.— TECHNICAL AND SCIENTIFIC INVESTIGATION. 



Apart from researches directly connected with the industrial 

 branch, investigations covering a wide field, and continuous since 

 the beginning of operations, upon zoological and oceanographic 

 subjects have been carried on to considerable extent. The varied 

 nature of these enquiries will be understood from the list of publi- 

 cations given below : — 



By Sir F. A. Nicholson — 



1. 'Note on Fisheries in Japan (Bulletin II), Madras, 1907. 



2. The Preservation and Curing of Fish (Bulletin III), Madras, 1909. 



3. Carp Growing in Germany (Bulletin XI), Madras, 191 7. 



4. Remarks on Canning (Bulletin XIII), Madras, 1921. 



5. Manufacture of Fish Oil and Guano (Bulletin XIII), Madras, 1921. 



By Mr. James Honiell— 



Pearl Fisheries. 



1. Report on the Indian Pearl Fisheries of the Gulf of Mannar (a 



long report of 109 pages), Madras, 1905. 



2. Explanation of the Irregularly Cyclic Character of the Pearl 



Fisheries of the Gulf of Mannar (Bulletin VIII), 1916. 



3. Report on the Pearl Fishery held at Tondi, 1914 (Bulletin VIII), 



1916. 



4. Prof. Huxley and the Ceylon Pearl Fishery, with a note on the 



Cultural Production of Free Spherical Pearls (Bulletin VIII), 



1916. 

 4a. Pearl Formation in the Indian Pearl Oyster (Jnl. and Proc, 

 Asiatic Society of Bengal, N.S., Volume XVIII, No. 2), 1922. 

 (Also numerous reports in the 5 volumes of Reports to the Govern- 

 ment of Ceylon on the Pearl Fisheries of Ceylon, published by 

 the Royal Society.) 



Oyster Culture. 



5. Report on the Suitability of Pulicat Lake for Oyster Culture 



(Bulletin IV), 1908. 



