47/183 "Ueber Darwinella aurea, einen Schwamm mit sternformigen Hornnadeln."-- "Archiv. Anat." I., page 57, 1866.) Owing to ill-health, and being busy when formerly well, I have for some years neglected periodical scientific literature, and have lately been reading up, and have thus read translations of several of your papers; amongst which I have been particularly glad to read and see the drawings of the metamorphoses of Peneus. "On the Metamorphoses of the Prawns," by Dr.Fritz Muller.--"Ann. |