229 



[Potonie, Henry]. Henry Potonie. 

 Autobiographische Skizzen mit Er- 

 ganzungen von R[obert] Potonie. Ber- 

 lin Verb. bot. Ver. 55 1913 {(57H(31)). 

 [0010]. 80799 



Abbildungen und Be- 



schreibungen fossiler Pflanzenreste. 

 Lfg 9 = Nr. 161-180. Hrsg. v. d. 

 Kgl. Geol. Landesanstalt. Berlin 



(Geol. Landesanst.) 1913 (getrennte 

 Pag.). 20 cm. 3 M. [SOOOf]. 80800 



Illustrierte Flora von 



Nord- und Mitteldeutschland. 6. Auli. 

 Bd 1. Jena (G. Fischer) 1913 (VIII + 

 562). 20 cm. 4. M. Bd 2. Atlas. 

 r&. (IV + 390). 20 cm. [8000 c?c 

 5000]. 80801 



Potonie, Robert. Uber die xero- 

 philen ^lerkmale der Pflanzen feuchter 

 Standorte. Natw. Wochenschr. Jena 

 28 1913 (746-749). [3200]. 80802 



V. Potonie, Henry. 



Potrat. Un cas curieux do terato- 

 logic vegetale. Paris J. soc. horticult. 

 (s6r. 4) 13 1912 (823 av. fig.). [1800]. 



80803 



Pougnet, Jean. Observations anato- 

 miques et physiologiques sur les 

 organes de vegetaux exposes aux 

 rayons ultraviolets. Paris C. R. ass. 

 frang. avanc. sci. 41 1912 (Resumes 

 189-190). [3000 1000]. 80804 



Observations anatomiques 



et physiologiques sur les organes de 

 vegetaux exposes aux rayons de courtes 

 longueurs d'onde. Paris C. R. ass. 

 vran9. avanc. sci. 41 (Nimes) 1912 

 (781-783). [3200]. 80805 



Poulton, Miss Ethel M. Abnormal 

 flowers of the Foxglove [Digitalis]. 

 Naturalist London 1913 (315-318 with 

 2 figs.). [1500 1800 5400]. 80806 



Powarnin, G. und Schurawlew, N. 

 Untersuchung iiber den Gerbstoff der 

 Rinde von Salix alba viminalis. 

 [Uebers. v. J. v. Schroeder.] Collegium 

 Worms 1913 (283-291). [3120 5400]. 



80807 



Power, Frederick Belding. The 



influence and development of some of 

 the researches of Daniel Hanbury. 

 Pharm. J. London (4) 37 1913 (489- 

 492). [0010]. 80808 



and Salway, Arthur 



Henry. The constituents of the 



rhizome and roots of Caulophyllum 

 thalictroides. London J. Chem. Soc. 



Trans. 103 1913 (191-192). [1060 

 1210 3120 5400]. 80809' 



Power, Frederick Belding, Futin» 

 Frank and Rogerson, Harold. The 

 constituents of hops. London J. Chem. 

 Soc. Trans. 103 1913 (1267-1292). 

 [1500 3120]. 80810 



Poyser, W. A[ldworthl. The identity 

 of As'plenium Ferrissi with A. alter- 

 naiis. Fern Bull. Joliet HI. 19 1911 

 (33-36). [6700]. 80811 



Praeger, R[obert] Lloyd, [Sec], 

 Clare Island. Final report of the 

 Committee. London Rep. Brit. Ass. 



1912 [1913] (294). [0020]. 80812 



What do we mean by a. 



" Native Species." [Abstract.] Belfast 

 Rep. Nat. F. Club (Ser. 2) 6 1913 (573). 

 [0000 8000 de]. 8081 a 



On the buoyancy of the 



seeds of some Britannic plants. Dublin 

 Sc. Proc. R. Soc. N.S. 14 1913 (13-62). 

 [1560 3280 8000 rfe]. 80814 



Irish water-plants. Irish 



Nat. Dublin 22 1913 (18). [8000 rfe]. 



80815 



Plants of Antrim and 



Down. Irish Nat. Dublm 22 19ia 

 (19). [8000 rfe]. 80816 



Additions to " Irish 



Topographical Botany" in 1908-1912. 

 Irish Nat. Dublin 22 1913 (103-110). 

 [8000 de]. 80817 



Trifolium jiliforme in 



West Mayo. Irish Nat. Dubhn 22 



1913 (119'). [8000 rfe]. 80818 



The cowslip in County 



Down. Irish Nat. Dublin 22 1913 

 (119-120). [8000 de]. 80819 



Spiranthes Boman- 



zoffiana in Co. Armagh. Irish Nat. 

 Dublin 22 1913 (179). [8000 rfe]. 



80820 



Helvella crispa in Co. 



Donegal. Irish Nat. Dublm 22 1913 

 (218). [8000 de]. 80821 



Weeds : simple lessons- 



for children. With illustrations by 

 S. Rosamond Praeger and R. J. 

 Welch. Cambridge (Univ. Press) 1913 

 (X + 108 3 pi. '45 figs.). 20 cm. 

 Is. 6d. net. [0030 1000 3000]. 



80822 



Lett, Canon H[enry] 



W[illiam], Cotton, A[rthur] [Disbrow], 

 and Knowles, M[atilda] C. Notes on 



