I must remain with the army yet a while in order to keep the hospital service in as efficient a state as adverse circumstances will permit, and the constant shiftings from one place to another render this difficult. When Kilgariff grows strong enough, set him at work in the laboratory. He would never tell you so, but he is a better chemist than I am, better even than you in some respects. Especially he is expert in shortening processes, and the army’s pressing need of medicines renders this a peculiarly valuable art just now. We need everything at every hour, but especially we need opium and its products, and quinine or quinine substitutes. Please give your own special attention to your poppy fields, and get all you can of opium from them. Send to Richmond all the product except so much as you can use in the laboratory in extracting the still more valuable alkaloids. Another thing: the dogwood-root bark bitters you are sending prove to be a valuable substitute for quinine. Please multiply your product if you can. Enlist the services of your friends everywhere in supplying you with the raw material. Get them to set their little negroes at work digging and drying the roots, so that you may make as much of the bitters as possible. There are a good many wild cherry trees at Wyanoke and on other plantations round about. Won’t you experiment, with Kilgariff’s assistance, and see if you can’t produce some quinine? Our need of that is simply terrible. Malaria kills five times as many men as Federal bullets do, and, apart from that, hundreds of sick or wounded men could be returned to duty a month earlier than they now are if we had quinine enough. Tell Kilgariff I invoke his aid, and you’ll get it. Kilgariff responded enthusiastically to this appeal. He personally investigated the quinine-producing capacity of every tree and plant that grew at Wyanoke or in its neighbourhood. “The dog fennel,” he said to Dorothy, “is most promising. It yields quinine in greater quantity, in proportion to the time and labour involved, than anything else we have. Of course, if ours were a commercial enterprise, it would not pay to attempt any of these manufactures. But our problem is simply to produce medicines for the army at whatever cost. So I have taken the liberty of ordering all your chaps”—the term “chaps” in Virginia meant juvenile negroes—“to gather all the dog fennel they can, and to dry it on fence-rail platforms. I am having the men put up some kettles in which to steep it. The rest we must do in the laboratory. Our great lack is that of kettles enough.” “Must they be of iron?” asked Evelyn, with earnest interest. “Must they have fires under them?”