A very rainy day. A silver ore from Hjortot has been assayed by the Mineral Board, and found to contain forty per cent. lead, but only three or four of silver.
August 15.
Near the ferry at Tornea I picked up the Fresh-water Sponge, Spongia lacustris of Newton, (S. lacustris; Syst. Nat. v. 1. 1299. Linnæus here refers to Mr. Newton, the friend of Ray, who found the Sponge in question in the Norwich river, where it still exists. It is however denominated in Ray's Synopsis, S. ramosa fluviatilis, not lacustris. Linnæus quoted from memory.)
August 16.
In dissecting the flower of Artemisia (vulgaris), I was struck with its very curious conformation. (This alludes to the want of a limb to the corolla of the female or marginal florets. See Fl. Lapp. ed. 2. 244.)
August 17.
I went by sea from Tornea to Calix. The wind proved contrary. The islands abounded with Whortle-berries, and with the fruit of
Rubus saxatilis. On one called Korsholm I met with a sort of Behen. Can it be the same with that which grows in cornfields? Their different parts are tolerably alike. This grew among the pebbles of the beach. Its calyx is oblong. Leaves narrow. Stem erect. Fruit of one cell. In other respects it resembles Behen. (This was Cucubalus (Behen) variety the third, or γ, Fl. Lapp. n. 180. ed. 2. 149. Silene maritima, Fl. Brit. 468. Engl. Bot. t. 957. We have found it remain for many years unchanged in a garden, propagating itself by seed, though Linnæus reports that the third year he could not distinguish his from our common Silene inflata, his Cucubalus Behen.)