510 
37 809—37 823a Perold —Petch. 
0 Perold A. J. The principial diseases of our vineyards (Agrie. Journ. of the 
Cape Good Hope, XXXVII, 1910, p. 370—377). 
Perona Carlo Fabrizio cfr. Mattirolo Oreste. 
10 Perotti Renato. Influenza di alcune azioni oligodinamiche su lo sviluppe 
e su Tattivita dei Bacillus radicicola. II. (Annal. di Bot., Roma V, 1906, 
p. 87—92). 
11 — Per una nota di G. De Rossi „Sui microorganismi produttori dei tuber¬ 
culi radicali delle Leguminose“ (Malpighia, XXI, 1907, p. 255—262). 
12 — Su i bacteri della diciandiamide (Ann. di Bot., VI, 1908, p. 337—380). 
13 Perraud J. (Concerning the principal diseases and enemies of the vine) 
(Progr. Agr. et Vitic. XXVI, 1896, p. 11—16, 48—50, 105—107, 123—132, 
207—212) fig. 
14 — (A new copper fungieide for combating black rot) (Journ. Agrie. Prat. 
LXII, 1898, no. 50, p. 849—850). 
15 — (Causes of the stunted growth of vines) (Progr. Agr. et Vitic. (Ed. L'Est), 
XXI, 1900, p. 667—670). 
16 — Ees parasites de la vigne en 1910. Les derniers traitements d’ete (Rev. 
agrie., vitic. et hortic. des regions du Centre de l’Est et du Sud-Est- 
Villefranche, 1910, No. 91). 
Perreau cfr. Bouygues H. 
17 Perrier A. Sur la combustion de 1’aldehyde ethylique par les vegetaux 
inferieurs (Compt. rend., CLI, 1910, p. 910). 
18 Perrier de la Bathie Eugene. (On the treatment of mildew by dilute 
Solutions of copper sulphate) (Progr. Agr. et Vitic., XXVI, 1896, p. 103 
bis 104). 
Perrier de la Bathie H. cfr. Jumelle Henri. 
19 Perrin G. (The method of action of a new copper fungieide) (Bull. Soc. 
Nat. Agrie. France LXIX, 1909, p. 890—893). 
20 Perrot E. Le Champignon de couche (Trav. Ecole sup. Pharm. Paris, VI, 
1910). 
21 Pestana J. Camara. Destruction du Lecanium hesperidum L. par le Sporo- 
trichum globuliferum Spegazzini (Bull. Soc. Portug. Sci. Nat. Lisbonne, 
II, 1908, p. 14—18) tab. 
22 Petch Thomas. Some Holderness (Yorkshire) Myxomycetes (Naturalist, 
London 1903, p. 339—341). 
23 — Descriptions of new Ceylon Fungi (Ann. Roy. Bot. Gard. Peradeniya, III, 
Part I, 1906, p. 1—10). 
23 a — Bud rot of the cocoa nut palm, Cocos nucifera (Cire, and Agrie. Journ. 
Roy. Bot. Gard. Ceylon, III, No. 15, 1906, p. 223). 
