Neue Litteratur. 165 



Whymper, R. 1913. The influence of age on the vitality and Chemi- 

 cal composition of the wheat berry. (Knowledge. N. S. X. p. 85 — 

 90, 135—138. ill.) 



Winkler, A. 1913. Ueber den Einfiuss der Aussenbedingungen auf 

 die Kälteresistenz ausdauernder Gewächse. (Jahrb. wiss. Bot. LH. 

 p. 467—506. 1 F.) 



Winterstein, H. 1913. Handbuch der vergleichenden Physiologie. 

 32.-34. Lfrg. (Jena, G. Fischer. 1913. 8°. p. 645—806. 57 A. p. 

 807—968 u. 481—640. ill. Preis 5 Mk. pro Lfrg.) 



Zirkel, E. 1913. Die Folgen der letztjährigen Sommers (1911) (Natur. 

 1913. p. 134—135.) 



VII. Palaeontologie. 



Arber, E. A. N. 1913. On the discovery of Fossil plants in the Old 

 Hill Marls of the South Staffordshire Coalfield. (Geol. Mag. X. p. 

 215—216.) 



Arber, E. A. N. 1913. Preliminary note on the Fossil Plants of the 

 Mount-Potts Beds, New Zealand. (Geol. Mag. X. p. 231.) 



Bancroft, N. 1913. On some Indian Jurassic Gymnosperms and Rhe- 

 xoxylon africanum, a new medullosean stem. (Trans. Linn. Soc. 

 London. 2. Ser. Bot. VIII. p. 69—103. 2 pl.) 



Cockerell, T. A. D. 1913. Fossil Flowers and Fruits. (Torreya. XIII. 

 p. 75—77. 2 f.) [In continuation of previously published studies, 

 Sambucus Ellisiae based upon a flower and Phalaris (?) geometro- 

 rum based upon a fruit, are described from the Miocene shales 

 of Florissant, Colorado. — Berry.] 



Dubois, R. 1913. Microzymas, coccolithes, Vacuolides. (C. R. Ac. Sc. 

 Paris. CLVI. p. 1175.) 



Halle, T. G. 1913. Mezozoic flora of Graham Land. (Geol. Mag. X. 

 p. 216— 217.) 



Holden, R. 1913. Cretaceous Pityoxyla from Cliffwood, New Jersey. 

 (Proc. amer. Ac. Arts and Sc. XLVIII. p. 609—623. 4 pl.) 



Krasser, F. 1912. Williamsonia in Sardinien. (Sitzber. kais. Ak. Wiss. 

 Wien. 1. CXXI. p. 943—973. 2 T.) 



Menzel, P. 1913. Beitrag zur Flora der niederrheinischen Braunkoh- 

 lenformation. (Jahrb. kgl. preuss. geol. Landesanst. 1913. 98 pp. 

 7 T. 7 pp. Erkl.) 



VIII. Microscopie. 



White, T. C. 1913. The Microscope and how to use it. Enlarged edi- 

 tion with a chapter on the marine aquarium. (London 1913. 8°. 

 170 pp. ill.) 



IX. Cryptogamen im Allgemeinen. 



(Vacat.) 



X. Algae. 



Borge, O. und A. Pascher. 1913. Zygnemales. Die Süsswasser-Flora 



Deutschlands, Oesterreichs und der Schweiz. Heft 9. (Jena, G. 



Fischer, 1913. IV, 51 pp. 89 A. Preis Mk. 1.50) 

 Cosette, P. 1911. Catalogue des algues marines du nord de la France 



et des cötes de Normandie. (C. R. Congr. Soc. Sav. Paris. Caen 



1911. p. 76—125.) 

 Mazza, A. 1913. Saggio di algolo^ia oceanica. (N. Notarisia. XXVIII. 



p. 113—131. cont.) 

 Moreau, Mme F. 1913. Les corpuscules metachromatiques chez les 



Algues. (Bull. Soc. bot. France. LX. p. 123-126.) 



