M. E. Millon on Metals in the Human Blood. 309 



ferent directions by the prevailing winds. At Queensferry, 

 a specimen from the surface was shewn and tried, and found 

 1023, shewing 1 part of fresh in nearly 9 of salt, and at 14 

 fathoms down, it was 10231, or 1 part fresh in lOi salt. At 

 Alloa, again, where the waters at low water are nearly quite 

 fresh, yet at high water a specimen was shewn, which was 

 found 1010] at the surface, and at the bottom 1013, shewing 

 a mixture of 10 parts of fresh in 16 salt, in the one case, and 

 exactly half-and-half in the other. 



In the Northern and Arctic Seas, it has been found by Dr 

 Marcet, and Mr Scoresby, and Dr Fyfe, 10267, and nearly 

 the same at all depths. Under the equator 1028. In the 

 Mediterranean 1028-62, shewing that this sea is considerably 

 Salter than that of the oceans which surround the globe. 

 But the saltest, at least the heaviest of all the waters on the 

 earth is the Dead Sea, which is impregnated not only with 

 salt, but also with sulphurous and bituminous ingredients. 

 The specific gravity, from a specimen brought over many 

 years ago by Mr Gordon of Clunie, was found to be 1211, 

 shewing an impregnation eight times greater than sea- water.* 



On the Normal presence of different Metals in the Human Blood. 



M. E. Millon has addressed to the Academy of Sciences, 

 a Memoir on the Nonyial Presence of many Metals in the 

 Human Blood, and an Analysis of the fixed Salts contained in 

 that Liquid. 



Upon receiving the blood on issuing from a vein in about 

 three times its volume of water, and introducing it after this 

 dilution into ajar of gaseous (chlore) chlorine, it is seen to 

 coagulate, become of a brown colour, and soon after forms a 

 grey amorphous mass, in which the organisation of the 

 sanguineous globules has entirely disappeared. By placing 

 tlie whole in a tine cloth and squeezing it, a liquid Hows out 



* See Jameson's Philosophical Journal, vol. ii., 1820, 



