Class IV. BLEAK. 37* 



thofe which Ariftotk* fays that the Ballerus and 

 Tillo are infefled with, which torments them fo that 

 they rife to the furface of the water and then die. 



Artificial pearls are made with the fcales of this Artificial 

 rim, and we think of the dace. They are beat in- 

 to a fine powder, then diluted with water, and in- 

 troduced into a thin glafs bubble, which is af- 

 terwards filled with wax. The French were the 

 inventors of this art. Doctor Lifter f tells us, that 

 when he was at Paris, a certain artift ufed in one 

 winter thirty hampers full of fifTi in this manu- 

 facture. 



The bleak feldom exceeds five or fix inches Descrip* 

 in length : their body is (lender, greatly comprefT- 

 ed fideways, not unlike that of the fprat. 



The eyes are large : the irides of a pale yellow : 

 the under jaw the longed : the lateral line crooked]: 

 the gills filvery : the back green : the fides and 

 belly filvery : the fins pellucid : the fcales fall off 

 very eafily : the tail much forked. 



During the month of July there appear in the White 

 Thames, near Blackwatt and Greenwich, innumer- 

 able multitudes of fmall fim, which are known 

 to the Londoners by the name of White Bait. They 

 are efteemed very delicious when fried with fine 

 flour, and occafion, during the feafon, a vaft refort 

 of the lower order of epicures to the taverns con- 

 tiguous to the places they are taken at. 



* Hijl. an. lib. VIII. c. 20. 

 f Journey to Paris, 142. 



B b 2 There 



