326 Geological Society. A few slips have been noticed in looking through the pages, as Tulipa CeUiana (p. 178) for Celsiana, Alexander Brown (p, HI) for Braun ; on page 67 a given figure, E, is assigned to two different authors; on page 102 " nearhj amooboid parasites " should, of course, be merely, and S)jnchitrium decipiens. Fries, appears as " discipens " (p. 37), &c. Dr. Margaret Ferguson's paper is given up to a detailed account of her researches on a topic on which she has already published good work. The different scale of the two works now under notice may bo gauged by the fact that here 141 pages are devoted to what is compressed into less than fi pages of Dr. Mottier's paper. In both the modern slipshod method of reference to literature is employed, namely, that of giving the author and an abbreviation for the year, as ('01) for 1901. It is a real grievance that if these references are to be checked the page is not supplied also, for the plan here followed is that of flinging a bulky paper at the reader and bidding him discover for himself where the statement cited is to be found. It is this easy writing that makes hard reading, and those who have been trained in an older and perhaps more careful school, revolt at this offhand method, now too much in vogue. PROCEEDINGS OF LEARNED SOCIETIES. GEOLOGICAL SOCIETY. November 9th, 1904.— J. E. Marr, Sc.D., F.R.S., President, in the Chair. Mr. E. T. Newton, in exhibiting, by permission of the Director of H.M. Geological Survey, a specimen of FayoUa near to Fai/olia f/randis, found by Dr. L. Moysey of Nottingham in the Coal-Measures of Ilkeston (Derbyshire), pointed out that FayoUa was first described by Profs. Renault & Zeiller in 1884, in their monograph on the ' Houiller de Commcntry.' In 1894 Mr. Seward described the first British specimen, from Northumberland, in the Leeds ' Naturalist,' but thought that it was not a plant. There was some resemblance to certain spiral egg-cases of Elasmo-branchs ; but Dr. Giinther was unwilling to accept the Northum-berland fossil as the egg-case of a fish. IMr. Kidston had not yet seen the specimen now exhibited ; but, from a sketch, he recognized its relation to FayoUa. At present, there was still uncertainty as to the exact nature of this fossil. The following communications were read : — 1. ' Notes on Upper Jurassic Ammonites, with Special Reference to Specimens in the University Museum, Oxford : II.' By Miss Maud Healey. This paper gives a redescription of the types of Cardiocerns vertebrale^ Sow., C, scarbrugense, Y. & B., C. cordatum, Sow., and
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