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Show 1906.] OX AX ABNORMAL FEATURE OF THE KXOT. 6. S hore, T. W .-" On the Development of the R e n a l-Portals and Fate of the Posterior Cardinal Veins in the Frog. Jour. Anat. Physiol, vol. xvi. n. s., 1901. ------ " On Abnormal Veins in the Frog." Jour. Anat. Physiol, vols. xiv. & xv., n. s. g --------- & J o xe s .- " On the Structure of the Vertebrate Liver. Jour. Physiol, vol. x., 1889. 9 ------ " Notes on the Origin of the Liver." Jour. Anat. Physiol, vol. v. n. s., 1891. 10. W oodland, W.-" On a New Mode of Persistence of the Posterior Cardinal Vein in the Frog (.Rana temporaries) : with a Suggestion as to the Phylogenetic Origin of the Post-Caval Vein." Zool. Anzeig. vol. xxviii., 1905. 1 1 . " On the Phylogenetic Cause of the Transposition of the Testes in Mammalia." Proc. Zool. Soc. Lond. 1903, vol.i. pp. 319-335. December 11, 1906. Dr. H e x r y W o odward, F.R.S., Vice-President, in the Chan*. The Secretary exhibited a black-and-white sketch of a young female Gorilla (PI. LXIII.), made by Mr. Carton Moore-Park, R.B.A., F.Z.S., from an animal that had lived for a few weeks in the Society's Gardens in 1906. He stated that most of the published figures of Gorillas appeared to represent more adult animals. Young Gorillas were much more human, and more gentle and intelligent than was generally supposed. Mr. H. B. Fantham, B.Sc., F.Z.S., exhibited original drawings of " Trypanosoma" balbianii (Certes), showing apparent cilia, which might, however, be only threads of the sheath or undulating membrane which had become ruptured. These were first seen in this organism by M. Fred Vies and himself at Roscoff this summer. This parasite, which occurs in the crystalline style of the Oyster, was compared with various Spirilla and Spirocliaetes, and its systematic position among the Protista was discussed. Mr. F. E. Beddard, F.R.S., F.Z.S., exhibited and made remarks upon some examples of the Earthworm (Benhamia johnstoni) from Mt. Ruwenzori, which had been entrusted to him for study by Mr. W. R. Ogilvie-Grant. Mr. J. L. Bonhote, F.Z.S., exhibited one of the innermost secondaries of the Knot (Tringa canutus) taken from a bird in his aviaries. The specimen was remarkable from the fact that the summer feather, instead of being cast at the autumn moult, was |