Sunshine, Rain, and Wind 



food material, and would of course make excellent 

 manure. 



Bacteria are present to work up such decaying matter 

 as these. Unfortunately these observations were made 

 too late in the season to know whether mites were 

 common or not. Should it be found that they frequent 

 these plants and devour the fungus spores, pollen, &c., 

 then their droppings should be of the finest manurial 

 value. 



If this turns out to be correct, then plants often 

 possess very elaborate arrangements both for dealing 

 with atmospheric dust and for turning dangerous disease 

 germs into a useful sort of plant food. 



1 Nestler, Lindau, Freeman. 2 Thomas. 3 Kosaroff. 



4 Hildebrandt. 5 Journ. R. Hort. Soc., April 1902, p. 900. 



6 Freidenfeldt. 7 and 8 Hansgirg. 9 Warming. 



10 Peirce. n Cieslar. 12 Krasan. 



13 Adatnovic. 14 Von Wettstein. 13 Knuth. 



16 Boodle. 17 Parkin and Pearson. 



18 Kirchner, Low, and Schroter. 19 Hesselmann. 



20 Katie, Koning, and Heinsius. 21 Went. 



22 Burkill. 28 Weisse, Yule, Shull. 



24 Goebel, Groom. 26 Ursprung. 26 Henslow, Hartig. 



27 Tshirch, Wildt. 28 Biicher. 29 Macnaghten-Jones. 



I 94 



