Our Schooner sailed for Rio Negro, in order if possible to catch Mr Wickham before he & Mr Stokes set out in their little vessels on a surveying cruize. Mr Chaffers has at present the command. Mr Wickham will have it eventually. The chief cause of the Beagle's present delay is the Captain having purchased what remained of the Frenchmans wreck for refitting the schooner. During this time I have been very busy with the Zoology of the Sea; the treasures of the deep to a naturalist are indeed inexhaustible.
Our tender, the Adventure, sailed on the 4th of April, under the charge of Mr. Chaffers, who was desired to call off the River Negro, and thence go to Maldonado, moor his vessel close to Gorriti Island, land every thing, and commence her thorough refit.