0060 28G 



Naylor, E. 'J'he Bradfoid ]*otaiucal 

 Ganldi. Bradford, Sci. J., 1, 1904, 

 (11-13). 



Niemann, G. Das Mikroskop und 

 se.iie L'einitznnr!; in> jiflaiizeuaiiatomi- 

 Kflitn Untcrriclite. Erste Einfuhruiig 

 in die niikroskopische Technik, zugleicli 

 eine Erlauteruiig zu den Pflanzenanato- 

 iniscLen Tafeln von Nicnianu luid Stern- 

 stein. MadgeLiircc (Creutz), 1904, 

 (X + 7G, mitG Tat J. 2i cm. 1,75 Jl. 



Nilsson, N[i]s] Hjalmar. Annual 

 repoit of the transactions of the Swedish 

 >-eed union for 190]. (Swedish) Sv. 

 Utsiidesf. Tidskr., Malnio, 12, 1902, 

 (3-18) . . . for 1902. it. 13. 1903, 

 (3-33) . . . for 1903. 76.14,1904, 

 (3-39). 



• Fuither imj ortaut ad- 

 vances on Svalof's " irelhod ol imjirove- 

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 Malmo, 12, 1902, (173-182). 



NilSEon-Ehle, Herman. A few 'ivords 

 alciit the importance of large-grained 

 seed, especiaJly on the attack of Of^cinis 

 Frit. (Swcdisli) Sv. Utsadet-f. Tidtkr., 

 Malmo, 12, 1902, (158-1G5). 



On some of our most 



important plant diseases and tlieir 

 economic import;;nce for farmers. 

 (Swedish) Sv. Ut^adesf. Tidskr., llalmo, 

 14, 1904, (103-174). 



Olbers, Gust. Jul. j\]isce]]aneoiis 

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 (Swcdisli) Goteljorg, Goteh. o. Eohns 

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 153). 



Oliver, F. W. An e>lii!)it of speci- 

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 palaeozoic rocks fat the British Museum 

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 3, 1904, (177-180). 



Paul, IJiidolf. Bes-tin.mung d( r Ver- 

 grosserung hei Mikrosk()j:cn mittels 

 OLjektiv- und Ckulaimikrometer. 

 "Wicn, Veih. ZcolEot. Ges., 64, 1904 

 (598-C02). 



Peacock, E. A. AVocdrufrc. Seed 

 collecting i.nd drying. Xafuialist, 

 I.ondrn, 1904, (170-1 7S). 



P^nevfyre, I'aul. Kouveautes de 

 fleurs etsujees en 1901. Lausanne, 

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 (i01-20r)); 35, 1102, (2-3). 



Institutions. 



Pfitzer, E[inst]. Immergriine Lauln 

 luilzer iui llcideiberger Schlossgarten. 

 n. Mitt. Milt. 1). dendr. Ges., Bonn, 

 1904, (54-58, mit Taf.). 



PfuM, [Fritz]. Das Herbarium in» 

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 Poscn, Zs. 1). Ges. Wiss., natw. Abt., 

 10, 1903, (1-15). 



Pillichody, A. T.e role de la foret eii 

 montagne ; reboisenicnt danslehaut.Tur;» 

 neuchatelois. Bui. Agric. Keuchatcl, 

 Cornier, 12, 1903, (211-216). 



Pinchot, GifTord. A primer of 

 ft)restrv. [2 vols.] Part 1. The forest. 

 Washington, D.C., Bull. U. S. Dept. 

 Agric. Div. Forest , No. 24, 1903, (88, 

 with text fig. and pL). 18.3 cm. 



Pitard, J. Papport snr la visite faite 

 par la Societe botanique de France i\ 

 I'herbier de M. Motelay. Paris, Biil. 

 soc. bot., 49, 1902 [1904], (cxxv-cxxvii). 



Plummer, Fred G. Forest conditions 

 in the Cascade range, AVashington, 

 between the Washington and Mount 

 Painier forest reserves. Wasliington, 

 D.C, Dept. Int. U. S. Geol. Surv. Prof. 

 Pai,rs., No. 6, 1902, (42, with maps and 

 pL). 29 cm. 



Central portion of Cascade 



range forest reserve, [Oregon]. Wash- 

 ington, D.C, Dept. Inst. U. S. Geol. 

 Smv., ProL Paprs., Ko. 9, 1903, (71- 

 140, with maps and pL). 



Forest conditions in the 



Black Mesa forest reserve, Arizona. 

 Prepared from notes by Theodore F. 

 llixon and Arthur Dodwell. Washing- 

 ton, D.C, Dept. Int. U. S. Geol. Surv., 

 Prof. Paprs., No. 13, 1904, (G2 -f^i, 

 with ]>!.). 29.5 cm. 



and Gowsell, M. G. Forest 



conditions in tlic Lincoln forest reserve,. 

 New Mexico. Washington, D.C, Dept. 

 Int. U. S. Geol. Surv., Prof. Paprs., 

 No. 33, 1904, (47-fiii, with pL). 29 cm.. 



Porchet, F. L'inlluence du sulfate 

 dc cuivre sur la germination dcs. 

 cereales. Lausanne, Bui. Soc. Sci. Nat., 

 (ser. 4), 39, 1903, (xviv-xlviii, 1 pL, 

 4G1-5G2, 1 pi.); Arch. Sci. Phys., 

 Cieneve, (ser. 4), 16, 1903, (743-745). 



Ravaz, L. Pecherches sur la 

 hrunissnre d(> la vigne. Paris, C-II, 

 Acad, sci., 128, 1901, (1O5G-1058). 



