Under date of 4th September, Mr W. Ross writes: "I have to acknowledge receipt of your printed circular, concerning envelopes to contain wings of unknown birds, to be forwarded to you for identification, and labels for marking the same." .... "After Sunday, my last schedule, I continued making jottings, and the 24th of March, from 9 P.M. to daylight, was really interesting. The flocks of birds about the lantern were immense, and so numerous, that in striking the glass they broke the outside glass protector of our thermometer. There has not been anything unusual since that date." [Fidra promises well to be an important observatory, under certain conditions of wind and weather.--J. A. H.-B.] Later, under date of 18th September 1886, Mr W. Ross says: "Had I known Moths would have been of any use to you, I believe I could have given you a varied, rare, and enormous parcel. Last month it was Moths everywhere, after darkness set in. I had to sweep them down with a towel, some very large and beautiful. Mr Anderson (of Messrs A. & F., Edinr., Advocates?) seems a keen entomologist, and I was describing some of these to him (on the occasion of a visit he paid to Fidra on the 6th September). One beautiful specimen--not a moth, I think--of a size between a daddy-long-legs and dragon-fly, and much the same shape; enormous bronze wings, beautiful vermilion body, black head, with a red (or yellow?) streak (or spot?), and antennas more like a young lobster than anything else. "Eider Ducks, I understand, used to breed on all the islands about here. But this year a man got a dozen small boats, and hired them out at N. Berwick; the consequence is that the Ducks have entirely left the Craig and Lamb Islands owing to their nests having been plundered. We on Fidra consequently have had a greater number of birds breeding, and found many nests with 6 to 8 eggs; also Terns, and many smaller birds. As we are strictly prohibited from using a gun on this precious island, I can't send you many specimens; but if anything does turn up, I will not fail to send it you." Later, under date of 1st October, in reply to inquiries, Mr W. Ross writes: "It was the latter half of August that these Moths were so numerous; and though in September there were a few, it was nothing in comparison with the multitudes that occurred the previous month. Some guide such as you suggest" [referring to Johns' "Book of Birds"], "to enable observers to recognise species, would be of immense advantage. I am woefully deficient in this respect, and I am persuaded others are equally so. I hope your Committee will succeed in supplying some reliable book to render assistance in this respect." Separate Report under Genera and Species.