MICROSCOPY

3pp., 12mo. Bifolium. In good condition, on lightly-aged paper. The letter is addressed to 'My dear Forbes' , and while there is a possibility that it is addressed to David Forbes, the reference to the recipient being 'still in existence' suggests James David Forbes, who had been in bad health since his return from Norway in 1851. It begins: 'Only a few days before receiving your note we had been talking of you and wondering if you really were still in existence, for we had heard nothing of you in any way for so long.

3pp., 12mo. Good, on lightly-aged paper, on two leaves pinned together. He begins: 'I am sending herewith living specimens from Eagle Pond, Epping Forest, of a species of Volvox without protoplasmic connections between the cells. If you have not had it before you will no doubt be interested. If you have, I should be glad if you could tell me what you think it ought to be called. It is evidently close, if not identical, with V. Monona Gilb. Smith recorded by Pearsall as British from the Lake Dist. But it may also be V. tertius Meyer (cf.