Dear Sir

I thank you very sincerely for sending me the colours so promptly & especially for taking the trouble to give me so much information in your notes— I will try the substances sent before asking you to try & procure for me the Violet de Quinoline.¹

Your parcel arrived by post, at the moment when I was starting to leave home for two days,² so that I had not time to look at the substances.— Nor did I notice whether there was any enclosed account. If not enclosed, you can either send it at once, or allow it to run on, as my son Francis³ or myself will probably soon want some other chemical reagents.—

I remain | Dear Sir | Yours faithfully & obliged | Charles Darwin