Suggestions and information helpful to CD in preparation for Beagle voyage. David Brewster's meteorological papers. Suggests an oyster-trawl for collecting marine animals. Recommends CD see R. E. Grant. For meteorological observations suggests F. W. Beechey's Voyage to the Pacific  and an interview with J. F. Daniell of King's College.
My dear Darwin
I was no less surprized than delighted to see your handwriting once more on a letter
addressed to me. It is indeed ``a long time'' since I received any accounts of you. You
will be a most useful man in the situation which you have the prospect of filling in
The frame is made of iron, and measures from a to b, fig. 1. about 3 feet;—the bar which scrapes the ground has a blunt edge in front; the lower surface of the bag is formed of iron rings, the upper of strong netting. Fig. 1. is a front view with the bag hanging down. Fig 2 is a view of the implement in operation.
You might supply yourself also with a few lobster traps of various constructions. Many of the rarest of our Mollusca and Zoophytes are found adhering to the deep sea fishing lines; (such as are set for cod and haddock, and allowed to remain at sea for many hours together undisturbed). When at anchor, you might ``shoot'' some such lines, with small pieces of worm:eaten wood, or small baskets &c, as well as hooks, attached to them: by leaving these in the water over night, sunk to a considerable depth, you might obtain a rich supply in the morning.
I hope you will see D
With the best wishes for your welfare & success, I remain, with much esteem, Yours most sincerely | John Coldstream *S 2
- f1 124.f1Brewster 1826, 1823.
- f2 124.f2Beechey 1831. A copy of another edition (Philadelphia 1832) is in Darwin Library--CUL. It is not annotated. The copy CD used during the Beagle voyage was probably FitzRoy's (see letter from Robert FitzRoy, 23 September 1831).
- f3 124.f3John Frederic Daniell.