Digitalis assay / by W. Harrison Martindale.

  • Martindale, W. Harrison (William Harrison), 1874-1933
Date:
1913
Catalogue details

Licence: In copyright

Credit: Digitalis assay / by W. Harrison Martindale. Source: Wellcome Collection.

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    (6) There is much to be learnt as to the ideal conditions for growth of Digitalis. Speaking generally, I think a dry season favours potency. The most potent leaves I have examined were second year’s leaves from plants grown in this country in a sunny exposed situation. These leaves at time of collection were from plants showing no flower spikes. (7) An active Glycero-Alcohol Extract can be produced of strength 1 = 1, in fact, exactly equal in strength to eight > times that of a B.P. Tincture. r
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