Notes on the effects produced by the ancient glaciers of Caernarvonshire, and on the Boulders transported by floating ice.
Edinb. New Phil. Jour., vol. xxxiii., 1842, pp. 352, 353.
On the distribution of the erratic boulders, and on the contemporaneous unstratified deposits of South America (1841).
Geol. Soc. Proc., vol. iii., 1842, pp. 425-430;
Geol. Soc. Trans., vol. vi., 1842, pp. 415-432.
The structure and distribution of Coral Reefs.
Geog. Soc. Jour., vol. xii., 1842, pp. 115-119;
Poggendorff, Annal. Bd. lxiv., 1845, pp. 563-613;
Edinb. New Phil. Jour., vol. xxxiv., 1843, pp. 47-50.
Observations on the structure and propagation of the genus Sagitta.
Ann. Nat. Hist. Tom. xiii., 1844, pp. 1-6;
Ann. Sc. Nat. (Zool.) Tom. i., 1844, pp. 360-365;
Froriep, Notizen. Bd. xxx., 1844, col. 1-6.
Brief descriptions of several Terrestrial Planariæ and of some remarkable Marine species, with an account of their habits.
Ann. Nat. Hist., vol. xiv., 1844, pp. 241-251.