THE MICROBIOLOGY OF THE ATMOSPHERE 



RoEMER, T. (1932). Uber die Reichweite des Pollens beim Roggen. Z. Zucht., A. 17, 



14-35- 

 Rogers, L. A. & Meier, F. C. (1936). An apparatus for collecting bacteria in the 



stratosphere. ^. Bad., 31, 27. 

 & Meier, F. C. (1936^). The collection of micro-organisms above 36,000 feet. 



Nat. Geog. Soc. Stratosphere Series, 2, 146-51. 

 RoGERSON, C. T. (1958). Kansas aeromycology. I: Comparison of media. Trans. Kans. 



Acad. Sci., 61, 155-62. 

 RoMBAKis, S. (1947). Uber die Verbreitung von Pflanzensamen und Sporen durch 



turbulente Luftstromungen. Z. Met., i, 359-63. 

 Rooks, R. (1954). Air-borne Histoplasma capsulatiim spores. Science, 119, 385-6. 

 RoSEBURY, T. (1947). Experimental air-honie infection. Williams & Wilkins, Baltimore, 



222 pp. 

 (1949)- Peace or Pestilence: Biological warfare and how to avoid it. McGraw-Hill, 



New York, 218 pp. 



Kabat, E. a. & BoLDT, M. H. (1947). Bacterial warfare (A critical analysis 



of the available agents, their possible military applications, and the means for 

 protection against them), f. Immunol., 56, 7-96. 



RosTRDP, (p. (1909). Nogle Undersf/gelser over Luftens Inhold af Svampekim. Bat. 



Tidsskr., 29, 33-41. 

 RowELL, J. B. & Olien, C. R. (1957). Controlled inoculation of wheat seedlings with 



urediospores of Puccinia graminis var. tritici. Phytopathology, 47, 650-5. 

 RuEHLE, G. L. A. (1915). Methods of bacterial analysis of air. y. Agric. Res., 4, 343-68. 

 & KuLP, W. L. (1915). Germ content of stable air and its effect upon the germ 



content of milk. Bull. N.Y. St. Agric. Exp. Sta., No. 409, pp. 419-74. 

 Saito, K. (1904). Untersuchungen iiber die atmospharischen Pilzkeime. I: Mitt. 



J. Coll. Sci. Tokyo, 18 (Art. 5), 58 pp. (1903-4). 

 (1908). Untersuchungen iiber die atmospharischen Pilzkeime. II: Mitt. J. Coll. 



Sci. Tokyo, 23, 1-78. 



(1922). Untersuchungen iiber die atmospharischen Pilzkeime. Ill: Mitt. Jap. 



J. Bot., I, 1-54. 



Salimovskaja-Rodina, a. G. (1936). [Uber die Mikroflora des farbigen Schnees — in 

 Russian, German summary.] Arch. Sci. Biol., Ser. 2-3, 43, 229-38. 



Salisbury, J. H. (1866). On the cause of intermittent and remittent fevers, with inves- 

 tigations which tend to prove that these affections are caused by certain species of 

 Palmella. Amer. jf. Med. Sci., 51, 51-75. 



Savulescu, T. (1941). Mana vitei de vie. Imprimeria Nationala, Bucharest, 214 pp. 



Sawyer, K. F. & Walton, W. H. (1950). The 'Conifuge' — a size-separating sampling 

 device for airborne particles. J. Sci. Instrum., 11, 272-6. 



Scheppegrell, W. (1922). Hayfever and asthma. Lea & Febiger, Philadelphia, 

 274 pp. 



(1924). Airplane tests of hay fever pollen density in the upper air. Med. J. Rec, 



119, 185-9. 



(1925). Hay fever pollens in the upper air. Records established by airplane flights. 



Med. f. Rec, 121, 660-3. 



Schmidt, W. (191 8). Die Verbreitung von Samen und Bliitenstaub durch die Luft- 

 bewegung. Ost. Bot. Z., 67, 313-28. 



(1919). Die Verbreitung von Friichten durch die Luftbewegung. Naturrvissen- 



schaften, 7, 810-12. 



(1925). Die Massenaustausch in frier Luft und verwandte Erscheinungen. Probl. 



Kosm. Phys., 7, 1-118. 



ScHMiTT, C. G., Kingsolver, C. H. & Underwood, J. F. (1959). Epidemiology of 

 stem rust of wheat. I: Wheat stem rust development from inoculation foci of 

 different concentration and spatial arrangement. PI. Dis. Reptr., 43, 601-6. 



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