WEIGHT IN AIR AND WATER. 413 



A sponge dry weigheth one ounce twenty-six grains : 

 the same sponge being wet, weigheth fourteen ounces 

 six drams and three quarters : the water weigheth in 

 several eleven ounces one dram and a half, and the 

 sponge three ounces and a half and three quarters of a 

 dram. First time. 



The sponge and water together weigh fifteen ounces 

 and seven drams : in several, the water weigheth eleven 

 ounces and even drams, and the sponge three ounces 

 seven drams and a half. Second time. 



Three sovereigns made equal to a weight in silver in 

 the air differ in the water. 



For false weights, one beam long, the other thick. 



The stick and thread weigh half a dram and twenty 

 grains, being laid in the balance. 



The stick tied to reach within half an inch of the 

 end of the beam, and so much from the tongue, 

 weigheth twenty-eight grains ; the difference is twenty- 

 two grains. 



The same stick being tied to hang over the end of 

 the beam an inch and a half, weigheth half a dram and 

 twenty-four grains ; exceeding the weight of the said 

 stick in the balance by four grains. 



The same stick being hanged down beneath the 

 thread, as near the tongue as is possible, weigheth only 

 eight grains. 



Two weights of gold being made equal in the air, 

 and weighing severally seven drams ; the one balance 

 being put into the water, and the other hanging in the 

 air, the balance in the water weigheth only five drams 

 and three grains, and abateth of the weight in the air, 

 one dram and a half, and twenty-seven grains. 



The same trial being made the second time, and more 



