Class IV. BLEAK. 37* 



thofe which Arifiotle'^ fays that the Bdlerus and 

 Tillo are infefted 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 Artifiqiai, 

 fifli, 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. Do6lor Lifter -f tells us, that 

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

 winter thirty hampers full of filh in this manu- 

 fadure. 



The bleak feldom exceeds five or fix inches DesceiPp 

 in length : their body is flender, greatly comprelT- 

 ed fideways, not unlike that of the fprat. ' 



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

 the under jaw the longefl: : 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 Whit^ 

 Thames, near Blackwall and Greenwich ^ innumer- 

 able multitudes of fmall fifb, 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 valt relbrt 

 of the lower order of epicures to the taverns con- ^ 

 tiguous to ihe places they are taken at. 



* HiJ}. an. lib, VIII. r. 20. 

 f Journey to Paris ^ 1 42. 



B b 2 . there 



