538 Scientific Intelligence. 



ment of certain types, recorded during the intervening four years. 

 Surely a few of the most important of these works, such as 

 Williamson's recent memoirs- on the Organization of the Carbon- 

 iferous plants, in which, among other things, the secondary 

 growth in some Paleozoic fern stems is demonstrated, Zeiller's 

 classical monographs on the Valenciennes and Autun floras,. 

 Renault and Zeiller's Commentry flora, Dawson's Geological 

 History of Plants, with new additions to our knowledge of the 

 pre-Carboniferous floras, Stur's detailed examination of the 

 Schatzlav Calamarise, Kidston's studies among the British collec- 

 tions, Weiss's Sigillanae, and possibly Grand 'Eury's flora of the- 

 Gard basin, with its correlative and synthetic discoveries, should 

 have been given at least foot-note mention or comment. 



It would have given much satisfaction to American readers, if 

 Count Solms had included in his consideration the very interest- 

 ing, and in some respects unique types described from the Lower 

 Carboniferous of Ohio by Newberry in 1873 and Andrews in 

 1875, both of whose reports, published in the Ohio Paleontology, 

 are not even mentioned. But though unrevised, and virtually 

 unillustrated, Solms-Laubach's will for a long time be an invalu- 

 able reference work for vegetable paleontologists; and while 

 many will wish that the systematic names were distinguished in 

 some way in the print of the Oxford edition, most of us are 

 obliged for the translation. d. w. 



3. Ueber einige carbone Pflanzenreste aus der Argenthiischen 

 Republik • von Dr. Ladislaus Szajnocha. Sitzb. k. Akad. 

 Wiss., Wien, Math-Nat. CI., vol. c, Abth. 1, 1891, pp. 199-209 

 [1-11], PI. I, II. — The results, which Dr. Szajnocha presents in this 

 preliminary publication, of the examination of a few specimens 

 of fossil plants from the Argentine Republic are of great interest 

 from the fact that they offer the first satisfactory proof 'of the 

 existence of the Carboniferous system in that great territory. 

 Six species were found whose identities and affinities show that 

 the horizon is in the Carboniferous system, and most probably in 

 the Sub-carboniferous. Two, perhaps three, of the species are 

 found in the United States. The approximate locality, Retamito, 

 Prov. San Juan, is in about 32° S. lat., near the provincial border 

 on the railroad from San Juan to Mendoza. The previously 

 known South American Carboniferous plant-bearing localities, 

 the material from which was studied by Carruthers, are in the 

 provinces of S. Catharina and Rio Grande do Sul, Brazil, and 

 belong to horizons probably much higher than that now recog- 

 nized in the Argentine. 



4. Cambrian of Sardinia. — A paper on the Cambrian slates 

 of Sardinia by J. G. Boenemann is contained in the 56th volume 

 of the Nova Acta Academic L.-Car. Germ. Naturae Curioso- 

 rum, Halle, 1891. It is illustrated by 10 plates and describes a 

 number of new species of Trilobites and other species. Four 

 new genera of Trilobites are introduced : Olenopsls (0. Borne- 

 manni being Olenus Zoppii, var. elongata, of Meneghini), Meta- 



