Michigan ArAPK^rv of sriENCE. :i2n 



IJTKKATUUK OITKD. 



1. Chivers, A. H. The injurious efi'ec-ts of tarvia fumes on vegetation. 



Pljytopathology 7 :82-36. 1917. 



2. (Jatln, C. Ij. The tarring of roads and its effect on the neighboring 



vegetation. 



Ann. Sci. Nat. ser. 0, 15 :l(;r)-2r)2. 1912. 



3. Oliver, F. W. On the effects of urban fog upon cultivate*! plants. 



Journ. Koyal Hort. Soc. 1(5:1 -2S. 1893. 



4. Moore, G. T. Roses vs. Railroads. 



Rhodora 5 :93-9(>. 1903. 

 Michigan Agr. College. 



PHENOL INJURY TO APPLE. 



Plate XIX. a". Stpm portion oxposotl to fumes. 



b. Apple covered with tin foil in which letters were cut. 



c. The eflFect of phenol )i|)on the flesh of the apple. 



