524 
38 031—38 049 Pottei—Powell. 
31 Potter Michael Cresse. Note on Plasmodiophora Brassicae (Nature, London 
LV, 1896, No. 1411, p. 33). 
32 — The rotting of turuips and swedes (Journ. Board Agr. London III, 1896, 
p. 120—131) tab. 
33 — White rot of turnip (Proceed. Durham Phil. Soc., Novbr. 1899, p. 3). 
34 — On a bacteria! disease of the turnip (Proceed. Roy. Soc., London, LXVII, 
1901, p. 442—459) fig. 
35 — On the parasitism of Pseudomonas destructans Pott. (Proceed. Roy. Soc. 
London, LXX, 1902, p. 392—397) fig. 
36 — Observations on a disease producing the leaf-ear of the barley. New- 
castle 1907. 
37 — Note on the warty disease and corky scab of the potato (The Journ. of 
the Newcastle Farmer’s Club, July 1908). 
38 — On a method of checking parasitic diseases in plants (Journ. Agrie. Sci. 
Cambridge III, 1908, p. 102—107). 
39 — Uber eine Methode, parasitare Krankheiten bei Pflanzen zu bekampfen 
(Centrbl. f. Bakter. u. Paras., 2. Abt., XXIII 1909, p. 379—384). 
40 — Leaf-spot of Odontoglossum llro-Skinneri (Gard. Chron. 3. ser., XLV, 1909, 
p. 145—146) fig. 
41 — Observations on a disease producing the „dead ear“ of the barley 
(Proceed. Univ. Durham phil. Soc., III, 1909, p. 27—33). 
41 a — Bakterien und ihre Beziehungen zur Pflanzenpathologie (Centralbl. f. 
Bakter. u. Paras. 2. Abt. XXVIII, 1910, p. 624—640). 
42 — Bacteria in their relation to piant pathology (Transact. British Mycol. 
Soc., III, 1910, p. 150—168) fig. 
43 Potts George. Pinger and toe (Plasmodiophora brassicae) (Report Brit. 
Assoc. 1905, p. 596). 
44 Poulson E. Uber islandisches Moos ais Nahrungsmittel (Nord. Tidskr. of 
Terapi, VI 190S, No. 3). 
45 Poutrier et Lutembacher. Sub-cuti-reaction positive obtenue chez deux 
sporotrichosiques par 1’injection sous-cutanbe de cultures jeunes de sporo¬ 
trichose, brojees, diluees dans du serum et sterilisees (Compt. rend. Soc. 
Biol. Paris, LXVII, 1909, p. 24—25). 
46 Powell G. H. Quince rot (Garden and Forest, VII, 1894, p. 337). 
47 — A fungus disease of apple (Leptothyrium pomi) (Garden and Forest IX, 
1896, p. 474—475). 
48 — Peach yellows in nursery stock (Delaware Agrie. Exper. Stat., Rept. 1897, 
p. 168—174) fig. 
49 — Experiments in the prevention of tornato blights (Delaware Agrie. Exper. 
Stat. Rept. 1899, p. 153—156). 
