1 86 THE SCOTTISH BOTANICAL REVIEW 



" On the Periodicity of the Phytoplankton of some British Lakes," 

 byW. andG. S. West ("Journal of the Linnean Society," May 191 2). 



"Notice sur les spores des Licheni b/asteniasport Mass," by Abbe 

 Hue ("Bulletin de la Societe Botanique de France," 191 2, p. Ixvii). 



" Notes Lichenologiques," by M. Bouly de Lesdain (" Bulletin de 

 la Societe Botanique de fVance," 1911, No. 8). Contains descrip- 

 tions of a number of new species. 



" On the Brown Seaweeds of the Salt-Marsh," by Sarah M. Baker 

 (" Journal of the Linnean Society," February 191 2). 



" La Vendee consideree comme unite geographique et caracterisee 

 par sa flore," by F. Hy ("Bulletin de la Societe Botanique de 

 France," 191 1, p. xxvi). 



"The Relation of Ohio Bog Vegetation to the Chemical Nature of 

 Peat Soils," by Alfred Dachnowski ("Bulletin Torrey Botanical Club," 

 vol. xxxix.. No. 2). 



"An Ecological Study of a Cambridge Woodland," by R. S. 

 Adamson, M.A., B.Sc. ("Journal of the Linnean Society," February 

 1912). 



" Om en planmassig vaxtgeografisk undersokning of Sverige," by 

 H. Wilh. Arnell ("Svensk Botanisk Tidskrift," Haft 4, p. 418). 



" Observations on the Degree of Stomatal Movement in Certain 

 Plants," by B. E. Livingston and A. H. Estabrook ("Bulletin 

 Torrey Botanical Club," January 1912). 



"Researches on Heredity in Plants," by Professor F. E. Weiss 

 (" Memoirs and Proceedings of the Manchester Literary and 

 Philosophical Society," vol. Ivi., part i.). 



Reviews, Book Notices, etc. 



Prodro-mus Flor.^ BRiTANNiCit. By Frederic N. Williams. 

 Part IX., comprising the fourteen families in the four orders of 

 Rhamnales, Gruinales, Hippocastanales, and Tricoccales. Pp. 

 477~532- Brentford: C. Stutter. March 191 2. 



One year has elapsed since Mr. Williams published Part VHL of his 

 "Prodromus." In this last part we have some interesting reflections 

 on some British species. Of course, there are some name-changings 

 and alterations ; this seems to be inevitable in each succeeding 

 publication. Whether we shall be plunged into as great a muddle 

 as our American confreres, remains to be seen. 



It is not necessary here to enter into the scheme of arrangement — 

 this has been ably commented on in the notices of earlier parts, i.e. 



