226 SCIENCE PROGRESS 



in the Journal of Botany, June 191 7. Reid's Palaeobotanical 

 work had dealt pre-eminently with the late Tertiary, and he, 

 with the assistance of Mrs. Reid, had become the leading 

 authority on the small and difficult fragmentary remains such 

 as seeds in the Tertiary, and semifossil plants. 



The two other notable losses occurred in France. Grand'- 

 Eury, the famous veteran expert of the coal-fields, whose 

 classical works on coal deposits and the plants associated 

 with them are a monument in themselves ; and Prof. C. E. 

 Bertrand, following so soon Profs. Zeiller and Lignier, leave 

 France bereaved of nearly all her brilliant and distinguished 

 school of Palaeobotanists. To the death of Prof. Bertrand was 

 added the peculiarly poignant tragedy that he and his precious 

 collections in Lille were in the hands of the Germans. He 

 had been allowed to continue his work, but it needs little 

 imagination to understand how much less able to resist disease 

 he must have been with so sad a heart. 



From France this year there comes little Palaeobotanical 

 work. One memoir which must be of great importance and 

 is a continuation of the classic series on the Loire has, it seems, 

 been published, but has not yet reached any of the libraries 

 where it is available, so that I have not seen it. It is by 

 Bureau, Bassin de la basse Loire, Fasc. 2, Description des /lores 

 fossiles (Etudes gites min. France, 4 ill.). 



General Paleobotany. — The most important work of the 

 year is the continuation of Prof. Seward's valuable text-book. 

 In vol. iii. he deals with the Pteridospermeae, Cycadofilices, 

 Cordaitales, and Cycadophyta, thus leaving the whole of 

 the Gymnosperms and Angiosperms for future treatment. 

 This volume is as well illustrated and as full in its detail as 

 the preceding parts of this exhaustive work, and brings up-to- 

 date the consideration of all the families on which it touches. 

 Consisting of 656 pages of text and 253 illustrations, it is a 

 great achievement in war-time. This volume, like its prede- 

 cessor, deals impartially both with impressions and structural 

 material, and is illustrated by a very large proportion of new 

 and excellent figures. 



One or two smaller contributions to general Palaeobotany 

 appeared in semi-popular journals, several in Germany by 

 R. Krausal. Mention might perhaps be made of one, on the 

 leaf-form of Ginkgo (Centralb. Min. Geol. Palceont. p. 63) in 



