RECENT ADVANCES IN SCIENCE 229 



lent illustrations. The specimens were all impressions," 

 and the following species were described : Sphenopteris in- 

 curva, sp. n., foliage with curved terminal pinnule ; Spheno- 

 phyllum cuneifolium Sternb. f. amplum with exceptionally large 

 leaves ; Sigillaria elegans, leaf scars ; S. incerta, n. sp., leaf scars 

 whose arrangement is intermediate between the Favularia and 

 Clathraria sections of the genus ; S. Strivelensis, n. sp., leaf 

 scars ; Stigmaria minuta Goep., rhizome with root scars ; 

 Lagenospermum parvulum, n. sp., small seeds entirely surrounded 

 by cupules. 



(b) R. Kidston, in an important memoir on " The Forest 

 of Wyre and Titterstone Clee Hill Coal Fields " (Trans. Roy. 

 Soc. Edin. vol. li. p. 999), gave detailed lists of the fossil plants 

 of the various horizons from different localities ; a synopsis 

 of all the plants known from the Westphalian and other series ; 

 careful critical descriptions of various of the more interesting 

 specimens, among which are Annularia spicata Gutb., Cingularia 

 typica Weiss, Carpolithes membranaceus Goep., and the new 

 species Cingularia Cantrilli, n. sp., Sigillaria Pringlei, n. sp., 

 followed by Sphenopteris Dixoni, n. sp. An interesting record 

 of the well-known plant Neuropteris heterophylla is given from 

 the Keele group, which appears to be the first record of the 

 plant in the Radstockian series. Dr. Kidston's conclusions 

 do not confirm those published by Dr. Arber on the Stafford- 

 shire Coal Measures. The plates in this paper have maintained 

 the pre-war excellence which characterises Dr. Kidston's work. 



R. Etheridge, Jun., " Arrangement of the Leaves in the 

 Australian species of Noeggerathiopsis," Postscript by A. C. 

 Seward (Geol. Mag. p. 289), illustrated two very beautiful 

 leaf-clusters of Noeggerathiopsis, in one of which 7, in the 

 other 9, radiate apparently from a common centre, indicating 

 a whorled or very close spiral arrangement. The specimens 

 are of " Upper Coal Measure (Permo-Carboniferous) age." 

 The short paper included many references to the literature on 

 the subject. 



Linking Palaeozoic and Mesozoic, we have H. Yabe, on the 

 " Geological and Geographical Distribution of Gigantopteris " 

 (Sci. Rep. Tokyo Imper. Univ. ser. 2, vol. iv. No. 2), giving a 

 detailed study of the age and distribution of this rare genus, 

 with a map showing the localities at which it has been found 

 in America and Eastern Asia. In the paper are descriptions 



