Alcohol : glycerine=100:10·5
Extract : acidity=1000:16·6
Acidity : ash=10:3·4
Ash : extractives=1:11·2
Phosphoric acid : ash=1:6·8

[111] ‘Nahrungs u. Genussmittel,’ 1st part, p. 187.

[112] ‘Comptes Rendus,’ 102, p. 217-219.

[113] Am. Chem. 1876, p. 46.

[114] Blyth, op. cit.

[115] ‘Wieder die Nahrungsfälscher,’ 1881, p. 105.

[116] See Report by Dr. F. E. Engelhardt, New York State Board of Health, 1882.

[117] Hager’s ‘Untersuchungen.’

[118] ‘Berichte,’ 1882, pp. 1370, 1661.

[119] This test presupposes the existence in the water of the substances necessary for the support of vegetable growth.