231 



Prescott, Adclla. The oak and 

 beech ferns. Fern Bull. Joliet 111. 19 

 1911 (9-11). [6700]. 80843 



Walking ferns. [Catnpto- 



sorus rhizophylliis.] Fern Bull. 



Joliet III. 19 1911 (48-49). [6700]. 



80S44 



The Osmundas. Fern 



Bull. Joliet 111. 20 1912 (21-24). 

 [6700]. 80S45 



The tall spleen worts. 



Fern BuU. Joliet 111. 20 1912 (46-47). 

 [6700 8000 gg]. 80846 



Preuss, Hans. Pflanzen und Tier- 

 welt. 2. Von der Pflanzen- und 

 Tierwelt Westpreussens. [In : Die 

 deutsche Ostmark.] Lissa i. P. (0. 

 Eulitz) 1913 (141-155 m. 1 Taf.). 

 [8000 dc 3200]. S0S47 



[Prianisnikov, D. N.] npainiiiiHii- 

 KOB b, J. H. Kt Bonpocy o KopueBuxi. 

 Bi.i,it>,ieHiax-B (bt. CBaaii ci. noqBoyTOM- 

 jienieMT,). [Zur Frage iiber die schad- 

 lichen Wurzelausscheidungen.] Moskva 

 Ann. Inst, agron. 19 4 1913 (I-XXVII 

 mit 11 Abbild.). [3060]. 80S48 



La synthcse des corps 



amides aux depens de I'ammoniaque 

 absorbee par les racines. Rev. gen. 

 bot. Paris 25 1913 (5-13). [3000]. 



80349 

 Price, M. P. and Simpson, N. D. 

 An account of the plants collected by 

 Mr. M. P. Price on the Carruthers- 

 Miller-Price expedition through North- 

 West Mongolia and Chinese Dzungaria 

 in 1910. London J. Linn. Soc. 41 

 1913 (385-456 pi. 21-23 and map). 

 [5000 8000 eac eb]. 80350 



Price, S. Reginald. Problems of 

 plant life. 1. Evolution among lowly 

 forms (the Algae). Knowledge London 

 36 1913 (201-204 figs. 207-211). 

 [4400 7400]. 80351 



Dark-ground illumination 



and ultra-microscopic methods in 

 botany. Knowledge London 36 1913 

 (361-364). [0090]. 80352 



On Polyporus squamosus 



Huds. N. Phvtol. London 12 1913 

 (269-281 pi. 6 and 4 text-figs.). [3225 

 4050 7700]. 80353 



The method of dark- 

 ground illumination in botanical re- 

 search. Sci. Progr. London 8 1913 

 (343-354). [0090]. 80854 



Priestley, J[oseph] H[ubert]. Ex- 

 periments in the application of elec- 

 tricity to crop production. J. Board 

 Agric. London 20 1913 (582-594 with 

 1 diagram). [0090 3070 3160 

 3180]. 80855 



The quadrat as a method 



for the field excursion. J. Ecology 

 Cambridge 1 1913 (89-91 fig. 7). 

 [0090]. 80856 



Enzymes as synthetic 



agents. I. In carbohydrate meta- 

 bolism. Sci. Progr. London 8 1913 

 (113-121). [3100]. 80857 



and Knight, R. C. On 



the nature of the toxic action of 

 electric discharge upon Bacillus coli 

 comimmis. London Proc. R. Soc. 

 B 88 1913 (348-354). [3020 7700]. 



80358 



Prillieux, [Edouard Ernest] Ed. Ed. 



Griffon (1869-1912). Notice necro- 



logique. Paris Bui. soc. bot. 60 1913 



(202-205). [0010]. 80359 



Prince, S. Fred. Notes on various 

 ferns. Fern Bull. Joliet lU. 20 1912 

 (52-53). [0700 8000^/]. 80360 



Principi, Paolo. Alcune osser- 



vazioni sulle dicotiledoni fossiU del 

 giacimento oligocenico cU Santa Gius- 

 tina (Liguria). Atti Soc. ital. progr. 

 sc. Sesta riunione Genova Ottobre 1912. 

 Roma 1913 (805-807). [f 5400 



8000 dh]. 80861 



Pringsheim, Ernst G. Kulturver- 

 suche mit chlorophyllfiihrenden Mikro- 

 organismen. 2. Zur Physiologic der 

 Euglena gracilis. 3. Zur Physiologie 

 der Schizophyceen. Beitr. Biol. 



Pfianzen Breslau 12 1913 (1-108 

 m. 2 Taf.). [0090 7400 4050 3060 

 7700 3020]. 80862 



tjber Blaualgen. Natw. 



Berlin 1 1913 (495-497). [7400]. 



80863 



Zur Physiologie der 



Cyanophyceen. Verh. Ges. D. Natf. 

 Leipzig 85 (1913) II 1 1914 (647). 

 [7400 3060 3120 3200]. 80864 



Pringsheim, Hans. Die Beziehung 

 der Zellulosezersetzung zum Stickstoff- 

 haushalt in der Natur. II. Berlin 

 Mitt. D. LandwGes. 28 1913 (295- 

 296). [7700 3120 3100]. 80865 



