Faraday to John Joseph Griffin   8 December 1840¹

Royal Institution | 8 Dec 1840

Sir

I have very unexpectedly received your elaborate work on crystallography² and though from an attack in my head I dare not think of looking into it for some time yet hasten to acknowledge & return you my most sincere thanks for your kindness[.] It is very pleasant to see how greatly the literature of the departments of science is increasing in England[.]

I am Sir | Your Very Obliged Servant | M. Faraday

J.J. Griffin Esq | &c &c &c