Loewenstein and Kaufmann's Scheme: Repetition of small dose, relying on exciting hypersensibility—210 mg.; in 3 days, 210 mg.; in 3 days, 210 mg.; in 3 days, 210 mg.

Some use 110 mg., or 34, or 114, in same way.

This scheme is based on hypersensibility created by repetition of same dose in tuberculous subjects. Scheme not used at present.

Some advise single dose: 3 or 5 mg., (on the ground that gradual increase of doses creates tolerance).

7. Rules to Follow in Increasing Dose:

a If no reaction with one dose, give a larger one next time, according to b.

b If temperature rises less than 1 degree F, repeat same dose; otherwise increase.

c Avoid large doses in cases of weakness, nervous temperament, children, etc. In a majority of cases smaller doses suffice.

8. After Injection: