64 



6oo,000 yen. Kurajiro Hattori, one of the exhibitors of the 

 models connected with the lake, is a pisciculturalist of Tokyo 

 and is the forerunner of the culture of the snapping turtle which 

 characterizes Japan. Of late in the vicinity of the lake there 

 has been opened a piscicultural ground by him. In fact he has 

 close connections v\ith all the other piscicultural grounds of 

 different dimensions and therefore he has been awarded prizes in 

 exhibitions of various descriptions while there is much to be 

 seen in his service rendered towards the pisciculture of this 

 country. 



(7) The Model of the Porphyr Cultural Ground and the 

 Products Exhibited by the Exhibits Association of Tokyo. 



The culture of porphyr is extensively carried on in Tokyo, 

 Kanagawa and Chiba (in the Tokyo bay), Aichi and Miye (Ise 

 Inland Bay) Suruga (Suruga Bay) Mayagi (Matsushima Bay). 



The output ranges from 1,000,000 yen to 1,5000 yen of 

 which 8% is raised from the Tokyo Bay. The method of 

 culture, and the materials upon which seeds are fixed vary ac- 

 cording to districts. In the Tokyo bay bundles of oak branch- 

 es are used while in other instances bundles of bamboo sticks 

 are employed. In reference to the method of culture it may be 

 stated that the place with water of a comparatively high degree 

 of specific gravity which is 1.020 and sandy places where there 

 is a free flow of tides are called spatting grounds. Those bund* 

 les of branches are implanted at fixed intervals and distances in 

 a parallel line with the current. The method adopted in the 

 vicinity of Tokyo bay keeps a separate nursery with a sandy 

 bottom in which plenty of fresh water flows, and to which these 

 branches with seeds are transported. In other districts no dis^- 

 tinction is made between spatting grounds and nurseries. Of late,. 



