152 Report oF THE DEPARTMENT OF BoTANY GF THE 
crop of fruit, but it was thinned so that the trees were not injured 
by overbearing. The soil is a sandy loam, well drained, and the 
air drainage is fairly good. The soil has been cultivated every 
year and no other crop has been grown between the rows except 
when the trees were small. Last spring the orchard was not 
plowed until about June 1, and then the soil baked so hard that 
there was much difficulty in pulverizing it again. No manure 
was applied in the fall of 1900 and none in the spring of 1901. 
In the early life of the trees the owner thought they grew too 
fast and so manure was withheld from them somewhat. « 
The intermingling of the other varieties seemed to have no 
effect upon the Globe. Globe trees standing adjacent to trees 
of other varieties having a full crop of fruit were quite as much 
affected as trees standing at a considerable distance from other 
varieties. 
In the “little peach” disease the pit is of normal size and 
contains a well developed kernel, whereas in this case the pit is 
abnormally small and contains no kernel or at most only an 
abortive one. Herein lies the most striking difference between 
“little peach ” and the effects of imperfect fertilization. Plates 
Ill and 1Vshownatural-size photographs of thirteen peaches, all 
from one tree. Plate IV also shows natural-size photographs of 
the pits from these thirteen fruits. Number one was a normal 
fruit, while the others were undersized as a consequence of 
imperfect fertilization. By comparing the photographs of the 
fruits with the photographs of their pits it will be seen that 
there is an intimate relation between the size of a fruit and 
the size of its pit. Also that the majority of the pits were far 
below the normal size. The latter is also shown in a striking 
manner by the weights of the pits as given in the accompanying 
table: 
TABLE SHOWING WEIGHTS OF PEACH PITS. 
Pit No. 1 weighed.... 6.96 grams. Pit No. 7 weighed.... .80 grams. 
Pit No. 2 weighed.... 6.24 grams, Pit No. 8 weighed.... .50 grams. 
Pit No. 3 weighed.... 5.05 grams. Pit No. 9 weighed.... .40 grams. 
Pit No. 4 weighed.... 2.41 grams. Pit No. 10 weighed.... .20 grams. 
Pit No. 5 weighed.... 1.15 grams. Pit No. 11 weighed.... .20 grams. 
Pit No. 6 weighed..... 1.24 grams. Pit No. 12 weighed. .2. 20 grams. 
Pit No. 18 weighed.... .05 grams. 
