336 Scientific Intelligence. 



features render the work exceedingly useful independently of 

 any questions as to the real nature of doubtful forms, l. f. w. 



10. I Tronchi dl Bennettitee del Musel Iialiani. Notizle 

 storiche, geologiche, botanlche ; dei Professori Senatore G. Cap- 

 ellini e Conte E. Solms-Laubach. Con cinque tavole. Bologna, 

 1392. Estratta dalla Serie V, Tomo II delle Mem. Real Accad. 

 Sci. 1st. di Bologna. — Capellini writes the historical and geologi- 

 cal, and Solms-Laubach the botanical part of this memoir, giving 

 a very full account of the discovery and the real nature of all 

 the cycadean remains that have been long accumulating in the 

 various Italian museums, one specimen dating back as far as 

 1 745. Besides the eight species of Cycadeoidea which are 

 described and figured one other form is treated as belonging to a 

 different genus and named Cycadea Imolensls. Count Solms 

 reserves the name Bennettites for the sole B. Gibsonianus, the 

 nature of whose fructification is known and has been fully treated 

 by him in a previous memoir (see this Journal, vol. xli, p. 031), 

 Mention is made of three American forms. The specimen found 

 at Golden, Colorado, to which Lesquereux gave the name Zamio- 

 strobus mlrabllis was sent to Solms-Laubach by the II. S. Na- 

 tional Museum, with permission to dissect and describe it. It 

 has been returned together with two slides showing its internal 

 structure, but the only description is contained in letters from 

 him. In these and in the present work he has renamed it Cyca- 

 deoidea Zarnlostrobus, which name his label with the specimen 

 also bears, but no figures are given. The Tysonia Marylandica 

 of Fontaine from the iron ore clays (Potomac formation) of 

 Maryland is also regarded as a Bennettites or a Cycadeoidea, and 

 Capellini says that it closely resembles C. Maranlana. The C. 

 munita of Cragin from the Cheyenne Sandstone is supposed to 

 be a related form. l. f. w. 



11. Ueber den gegeniodrtlgen Standpunkt unserer Kenntniss 

 von dern Vorkommen fossller Glaclalpflanzen. Von A. G. 

 Nathorst. Bihang till svenska Vet.-Akad. Handlingar. Band 

 IV. Afd. Ill, No. 5. Stockholm, 1892. — It is matter ior congrat- 

 ulation that this valuable paper should have been published in 

 German instead of Swedish. It contains a resume of the pro- 

 longed and extensive researches of the author into the occurrence 

 of fossil plants in glacial deposits. These began nearly 25 years 

 ago and his contributions to the subject embrace more than a 

 score of titles. The present summary, however, goes further and 

 includes the results of the labors of others, and, though brief, 

 presents a bird's-eye view of the whole field. It is accompanied 

 by a map of northern Europe with the areas and particular 

 localities where these plants are found clearly marked. The 

 principal countries in which these occur are : Sweden (chiefly in 

 Scania at the extreme south, but also in Ostgothland, Gotland, 

 and Jemtland), Norwav (at Leine in Gudbrandsdalen), Denmark 

 (Seeland, Moen, Bornholm, Jutland), Russia (Esthland, Livland), 

 North Germany (East and West Prussia, Pomerania, Mecklen- 



