no SHELLS. Class VI. 



* The 9iells being harder than moft of other 



* kinds, are to be broken with a fmart ftroke with 

 f a hammer, on a plate of iron, or firm piece of 

 c timber, (with their mouths downwards) lb. as 

 c net to crufh the body of the fifh within g the 

 1 broken pieces being pick'd off, there will appear 



* a white vein, lying tranfverfely in a, little furrow 

 6 or cleft, next to the head of the fifh, which 

 4 muft be digged cut with the ftiff point of a. 



* horfe-hair pencil, being made fhort and taper- 



* ing. The letters, figures, or what elfe fhall be 

 c made on the linnen, (and perhaps filk too) will 



* prefently appear of a pleafant light-green color, 



* and if placed in the fun, will change into the 



* following colours, i. e. if in winter, about neon; 



* if in the fummer, an hour or two after fun- riling, 

 c and fo much before fetting ; for in the heat of 

 ' the day, in fummer, the colours will come on 

 1 fo fair, that the fuccefilan of each colour will 

 4 fcarcely be diftinguifhed. Next to the firft light* 

 4 green, it will appear of a deep-green, and in 

 4 few minutes change into a fea-green. after which, 



* in a few minutes more, it will alter into a 

 4 watcher-blue ; from that, in a little time more, 

 1 it will be of a purplifti-red •, after which, lying 

 4 an hour or two, (fuppofing the fun (till fhining) 



* it will be of a very deep purple-red, beyond 



* which the fun can do no more. 



4 Bet then the lad and mod beautiful colour, 



* after warning in fcalding water and foap, will 



' (the 



