From William Jenner 14 August 1864
8 Harley St. W
Augst. 14th. | 1864
My dear Sir
I had the sediment examined: it was phosphate of Lime— I suppose the urine was alkaline when passed.1 I think it would be well to try some other antacid than chalk. ie to omit that for a time—2 I enclose a prescription for a combination of antacids—3 I would also advise an increase in the Lime & the omission of the Colchicum—4 Continue the Podophylin—5
I do not think any advantage would be derived from a visit— I have now seen you often enough to judge well of your state as described by letter—6
Yours very sincerely | Wm. Jenner.
Charles Darwin Esqre.
CD’s urine sample was probably alkaline when passed. The deposit was phosphate of lime. Prescribes a new antacid and continuation of podophyllin. He can judge CD’s state as described by his letter.