SUBJECT INDEX 



Aberdeen, 127 

 Abies pectinata, 16 

 Absidia corymbifera, 208 



— ramosa, 208 



Acer pseudoplatanus, 212 

 Achromobacter, 126, 128, 140, 143 

 Acladium, 139 

 Acnida tamariscina, 16 

 Acremoniella, 137 

 Acremonitim, 134 

 Actinastriim, 140 

 Actinomyces griseolus, 139 



— phaeocronwgenus, 139 

 Actinomycetes, 33, 114, 129, 139, 141, 142 

 Adelie Land, Antarctica, 152 

 Adhesives for spore traps, 103 

 Aecidiospores, dispersal of, 37 



— impaction of, 82 

 Aerobiology, 194 

 Aeroconiscopes, 7-9, Fig. 2, 95 

 Aeroplanes, sampling from, 20-21, 93-94, 



135-46 

 Aeroplankton, 146, 147, 193, 197 

 Aeroscopes, 7, 95, 97, 109, 113 

 Aerosol viability tests, 191, 192, 198 

 Africa, invasion by Pitccinia polysora, 189 

 Agaricus, see ''Psalliota campestris' 

 Aggregation of spores in air, 154 



— of bacteria in air, 1 1 

 Agropyrtim, pollination of, 42 

 Agrostis, pollination of, 42 

 Air centrifuge, 98 



change indoors, 155, 156 



— composition of, i 



— hygiene, 155-61 

 masses, 29, 142-6 



spora near the ground, 108-30 



whip sampler, 103 



Algae, dispersal mechanisms of, 38 



— in air, 109, 116, 123, 137, 140, 149, 150, 196 

 Alginate- wool filters, 97 



Allergic activity of pollen, etc., 21 



Allergy, 11-12, 200, 201 



Alniis, 15, 16, 43, 127 



Aloina brevirostris, 151, 186-7, 201 



■ — rigid a , 151, 186-7 



AlopecuriiS, pollination of, 42 



Alpine air, 4, 10, 131, 132 



Alternaria, 17, loi, 114, 116, 118-20, 122, 



123, 126, 128, 135-7, 130, 141-5, 147, 151, 



152, 200, 208 



— solani, 165 



Altitude and microbial concentration, 13 1-3 

 Amanita rubescens, 17, 210 

 Amanitopsisy 16-17, 210 

 Amaranthaceae, 43 



Amblystegium serpens, 151 

 Ambrosia bidentata, 16 



— elatior, 16 



— spp.,43, 103, 120 

 Amoeba, 109, 149 



— polyphagus, 149 



Andersen sampler. Fig. 18, 102, 103 



Andropogon, pollination of, 42 



Anemophilous flowering plants, 39-43 



Antarctica, 128, 152, 153 



Anthoxanthiim, pollination of, 42 



Anthrax, 160 



Anthriscus sylvestris, 212 



Antibiotics in pollen, 130 



Aphanocapsa, 140 



Aquatic Phycomycete in air, 129 



Arctic air-spora, 128-9 



Arcyria denudata, 150 



Area dose (A.D.), 58, 59, 65 



Area source, 48, 169, 173-5, 178 



Arizona, 136 



Armillaria mellea, 210 



Arrhenatherum, pollination of, 41-42, Fig. 5 



Artemisia, pollination of, 43, 117 



— vulgaris, 212 

 Arthrococcus lactis, 134 



Ascomycetes, spores of, PI. 5; see also genera 

 and species involved 



— squirt-gun mechanism of, 36, 37 

 Ascospores, diurnal periodicity of, 116, 117, 



119, 120 



— in air, 114, 116-23 

 Ash, see Fraxinus 



Aspergillus, 82, 114, 122, 129, 134-7, I39> 

 142, 143, 147, 149, 153, 208 



— fumigatus, 135, 208 



— glaucus, 149 



— nidulans, 208 



— niger, 135, 149, 208 



Asymmetrical spores, rate of fall of, 15, 18, 19 

 Atlantic Ocean, the air-spora of, 10, 13, 124, 



125, 127, 137, 144, 145, 149 

 ■ — voyages, 10, 13, 124, 125, 127 

 Atmosphere, layers of, 22-29, F'?- 3- 

 Atmospheric circulation, 29 

 Atomiser-bubbler, 98 

 Automatic volumetric spore-trap, 99-101, 



Fis;. 17 

 Availability of sites, 162, 163 

 Avena, pollination of, 42 

 Axes of co-ordinate system, 47 



Bacillus, no, 149 



— aerophilus, 135 



— albolactis, 128 



237 



