My dear D^r. Ogle

Absence from home has prevented me from thanking you before for your last to me very valuable letter. I think I need not trouble myself much more about the Platysma.¹ If you sh^d. ever see any one suffering great fear & can remember the point do look at the neck.— I will enquire what muscle my informant named when he spoke about the longitudinal furrows.² I think Duchenne always speaks of transverse furrows.—³

I have just been in London for 6 days for some rest, & intended calling on you; but days so short, & not much strength for what I was forced to do, that I failed. I shall be up again in some 6 weeks or 2 months, & much hope then to see you.—⁴ If at any time you write again, please tell me whether I may call early & how early—

With very sincere thanks | Yours truly | C. Darwin