From A. H. Hassall   5 August 1856

Dear Sir,

I am preparing a new work on Adulteration and I am desirous of giving in it drawings representing the structure of certain fungi which attack the cereal grasses – namely Unedo rubigo, Unedo linearis & Puccinia graminis. If you could let me have small specimens of these fungi I should feel particularly obliged. I venture to trouble (you) on the subject because of the attention which you are known to have paid to the fungoid diseases of the grasses.

I remain | faithfully yours | A H Hassall