Sends CD large beetles from Chiloé.
Describes an earthquake at Caucague.
Gives exact location and measurements of two blocks of granite; has seen and heard of others; will report if he surveys the Potrero on Chiloé.
I have sent you a dozen of the large beetles which I told you of having seen in
Chiloé, & which I believe are not in your collection; I found them in
the crutch of átenihue tree, thirty feet from the ground in a nest of moss; I
was led to the spot by following one of them morning & evening for several days,
& always lost sight of it near this tree, which is situated about
There is a block of fine grained granite, on the beach of Aucar, opposite the
N.W. point of Caucague, length N. & S. 18f
I have heard of a block of granite situated in the Potrero of the Reycaquines, 8 miles west of Lluco, said to be the largest stone on chiloe, a man on its top can over look the woods to a great distance, I know not, whether that circumstance is owing to the hieght of the stone, or to the elevation of ground it stands on. I expect the potrero will be surveyed shortly, should I be sent on the commision, I will measure the stone & send you the contents.
I start this morning for Caylin & will return surveying the Indians lands as
far as Rouca which will occupy me two months. If I should see any thing which I consider
useful, I will send you word next Summer— M
- f1 269.f1Douglas was a surveyor, resident in Chiloé. He acted as pilot and interpreter to FitzRoy and provided him and CD with information about the country and its inhabitants. See Narrative 2: 364 and `Beagle' diary, pp. 252--3.
- f2 269.f2CD entered Douglas's data on erratic blocks in his geological notes (DAR 35.1: 300). CD first observed them during the Santa Cruz expedition in April 1834 and thereafter noted instances of blocks at a distance remote from their original formations. In Journal of researches (pp. 288--90 and Addenda) he published his view that transportation by icebergs was the explanation, a conclusion presented in 1841 in more comprehensive form in his paper `On the distribution of the erratic boulders … of South America' (Collected papers 1: 145--63). In his geological notes (DAR 34.2: 169) CD states that he had turned his attention to the transport of boulders as a result of `some queries sent by M
rLyell to Capt. FitzRoy'.