?4r) 



Atti Soc. ital. sc. nat.. 45, 1906, (46- 

 54). [8000 dh]. 40219 



Pavillard, J. Sur les Ceratium du 

 golfe du Lion. Paris, Bui. soc. bot., 54, 

 1907, (148-154). [7400 8000 rf/]. 



40220 



— ■ Sur les Ceratium du golfe 



du Lion. Paris, Bui. soc. bot., 54, 1907, 

 (22^-231). [7400 8000 dj\ 40221 



Paviolo, Italo. L'elettricita nel- 



Tagricoltura. Cuneo(tip. Cooperativa), 

 1906,(59). 22 cm. [3070]. 40222 



[Pavlovskij, M. M.] naB.iiOBCKirt, M. 

 M. ll3c.it;i,0BaHie h ouinKa cbckjio- 

 BUHHbix-i cfeManT.. [Untcrsuchung und 

 BewertungderSamen derZuckerriibcn.] 

 Vest, sacharn. promysl., Kiev, 8, 2, 

 1907, (302-307, 33C-339, 37C-375). 

 [0090 1560 3750 5400J. 40223 



Pax, F[eidinand]. Die von Felix 

 Rosen in Abyssinien gesammelten Pflan- 

 zen. (Beitrage zur Flora von Afrika. 

 XXX.) Bot. Jahrb., Leipzig, 39, 1907. 

 (602-662). [8000/6 7700 6700 6000 

 5400]. 40224 



■ Euphorbiaceae africanae. 



VIII. (Beitrage zur Flora von Afrika. 

 XXX.) Bot. Jahrb., Leipzig, 39, 1907. 

 (665). [5400 8000/]. 40225 



Fossile Pflanzen von Treb- 



nitz. Breslau, Jahresber. Ges. vaterl. 

 Cultur, 84, (1906), 1907, zool.-bot. 

 Sect., (53-56). [8000 c?c f]- 40226 



Pearl, Raymond, assisted by Olive 

 M. Pepper and Florence J. Hagle. Va- 

 riation and differentiation in Ceraio- 

 phyllum. [A study of the laws gov- 

 erning post-embryonic differentiation 

 and growth.] [With bibliograjshy.] 

 Washington, D.C., Carnegie Inst., 

 [Pub. No. 58], 1907, (1-136, with pi., 

 text fig.). 25 cm. [1010]. 40227 



Pearson, H[enry] H[arold] W[elch]. 

 Some notes on a journey from Walfish 

 Bay to Windhuk. Kew Bull., London, 

 1907, (339-360, with map and 2 plates). 

 [5000 8000 /]. 40228 



Some South African Cy- 



cads : their habitats, habits, and asso- 

 ciates. London, Rep. Brit. Ass., 1906, 

 [1907], (738-739). [6500 8000 /r/]. 



40229 



• The living Welwitschia. 



Nature, London, 75, 1907, (536-537, 

 with 3 figs.). [6500 8000 fg]. 40230 



[Pearson, Karl.] Cooperative investi- 

 gations on plants. III. On inheritance 

 in the Shirley poppy [Papaver Rhoeas. 

 var.] Second memoir. Biometrika, 

 Cambridge, 4, 1906, (394-426, 1 col. pi.). 

 [4410 5400]. 40231 



Pearson, Ralph S. The level of sub- 

 soil waters with regard to forest. Ind. 

 For., Allahabad. 33, No. 2, 1907, (57- 

 69). [3200]. 40232 



— Note on the natural regene- 

 ration of Anogeissus latifolia. Ind. 

 For., Allahabad, 33, No. 5, 1907, (231- 

 240). [3200]. 40233 



Pearson. W[illia]m H[enr]y. An 

 introduction to the British Hepa- 

 ticae. Manchester, Trans. Micr. Soc, 



1906, 1907, (46-53, pi. 1). [7000 

 8000 del 40234 



Pease, Arthur Stanley and Moore, 

 Albert Hanford. An alpine variety of 

 Houstonia caerulea. Rhodora, Boston, 

 Mass., 9, 1907, (209-210). [5400 



8000 grj]. 40235 



Pechmann, L. Das Agrikulturphos- 

 phat von L. Pechmann in Hamburg. 

 Mit Erwiderung von H[einrich] Immen- 

 dorff. Thiir. landw. Ztg, Weimar, 45, 



1907, (18C-182). [3060]. 40236 



Pechoutre, E. Revue annuelle de 

 Botanique. Rev. gen. sci., Paris, 18, 

 1907, (234-248, av. fig.). [0032]. 40237 



Peck, Charles H[orton]. Report of 

 the state botanist, 1905. Albany, N.Y., 

 St. Educ. Dept., Mus. Bull., No. 105, 

 1906, (£-106, with pi., partly col.); 

 op. cit. No. 116, 1907, "(1-117, 

 with pL). [0020 5400 6000 7700 

 8000 gg]. 40238 



New species of fungi. 



New York, N.Y., Bull. Torrey Bot. 01., 

 34, 1907, (97-104, 34i:-349). [7700 

 8000 gd gg gi]. 40239 



■ ■ V. Sargent, C[harlesJ 



S[prague]. 



Peck, Morton E. The flowering plants 

 of Hardin county. Des Moines, Proc. 

 Iowa Acad. Sci., 12, (1904), 1905, (193- 

 241). [8000 gi]. 40240 



Peckolt, Th[eodor]. Heil- und Nutz- 

 pflanzen Brasiliens. (Forts.) Euphor- 

 biaceen. Connaraceae. Berlin, Ber. 

 D. pharm. Ges., 16, 1906, (22-36, 176- 

 192, 231-248, 443-152). [5400 3120 

 8000 hh ]. 40241 



