From William Jenner 15 October 1864
Octr 15th. 64
My dear Sir
There is no objection to your taking the Chalk1 the urine, not becoming turbid I should fear stone if the urine continued in that state— Phosphate of Iron is a very useful medicine2—one I often prescribe—but I am inclined to the opinion that it the iron which does the good & that the phosphate of iron is a form in which it can in some be better or more easily taken into the system—& which sits better on the stomach of some—
The Iron if it agrees will certainly improve the vigour & give strength—
So my advice is continue the phosphate 〈of〉 I〈ron〉 Take C of Magnesia C. of Am. & sp. of HorseRad. & occasionally add the chalk—3
Yours very truly | Wm. Jenner.
P.S. | I am sorry that your letter having had to be forwarded to me has occasioned delay—4 I expect to be home on 27th. Octr.
Prescribes continuing the phosphate of iron.
Please cite as
Darwin Correspondence Project, “Letter no. 4637,” accessed on 21 October 2016, http://www.darwinproject.ac.uk/DCP-LETT-4637