1813.] Description of an Eriomeier. 121 



surements of the principal substances which I have examined 

 with the instrument. 



IV. Substances measured by the Eriometer. 



Milk, diluted, very indistinct, about 3 



Dust of lycoperdon bovista, very distinct 3-£ 



Bullock's blood, from beef 4-'- 



Smut of barley, called male ear G\- 



Blood of a mouse 6i 



Human blood diluted with water, 5 j after standing some 



days, 6, or 7 



Blood recently diluted with serum only 8 



Pus %x 



Silk, very irregular, about , 12 



Beaver wool, very even, (jointed) 13 



Angola wool, about 14 



Vigonia wool 15 



Siberian hare's wool, Scotch hare's wool, foreign coney 



wool, yellow rabbit's wool, about 15^ 



Mole's fur, about 16 



Skate's blood, very indistinct, about 16 



American rabbit's wool, British coney wool, about 16^- 



Buffalo's wool 18 



Wool of the ovis montana „ 18 



Finest seal wool, mixed, about fcgg, 



Shawl wool 18, or 19 



Goat's wool II) 



Cotton, very unequal, about I 19 



Peruvian wool, mixed, the finest locks 20 



A small lock of Welch wool 20 



Saxon wool, a few fibres 17, some 23, chiefly 22 



An Escurial ram, at Lord Somerville's show, 23 to 24 



Mr. Western's South Down, some specimens 24-J. 



Lioneza wool, 24 to 29, generally 25 



Paular wool, 24 to 29, generally 25£ 



Alpaeca wool, about 26* 



Farina of laurestinus 26 



Ryeland Merino wool, Mr. Henty 27 



Merino South Down wool, Mr. Henty 28 



Seed of lycopodium, beautifully distinct 32 



South Down ewe, Mr W. B 39 



( Ourse wool, Sussex 46 



Coarse wool, from some worsted 60 



It would not be difficult to obtain from these measures a 

 tolerable approximation to the value of wool at its usual prices. 

 If we square the number, and subtract 325, the remainder will 



