AGRICULTURAL EXPERIMENT STATION. 121 



that a battery of these nozzles leading from a common chamber, 

 would be an improvement over the present form. The aperture 

 is so small in the form now in use, that too much time is lost in 

 applying the liquid. 



The "graduated spray" nozzle, which goes with the Perfection 

 outfit, is good when accurately made, but if the central column is 

 not quite true, the spray is uneven. This nozzle requires heavy 

 pressure to give a satisfactory spray. 



The knapsack sprayers are usually supplied with the vermorel 

 nozzel, the form of which may be seen in figure 7. 



GENERAL SUMMARY. 



1. The work of the Horticultural Department during the 

 past year has been largely in the way of organization. 



2. The principal lines of investigation are in the study of 

 the effects of climate on plant variation ; effects of polli- 

 nation ; studies of the egg plant and the pepino ; the 

 amelioration of native fruits by selection and crossing; 

 methods of culture of certain garden vegetables in the field 

 and under glass ; methods of combating orchard pests. 



3. Experiments in the culture of cabbages show that the 

 best results are obtained by frequent transplanting ; that 

 in general, depth of setting has little influence on the size 

 of the heads ; that disturbing the roots in transplanting 

 has no marked effect on size of head or time of maturity. 



4. Experiments with tomatoes show that frequent hand- 

 ling makes plants stocky ; that early setting is advisable ; 

 that trimming the plants is an effective method of hastening 

 maturity and increasing yield. 



5. Egg plants may be successfully grown in this region 

 by starting the plants early, and giving them rich soil 

 and thorough cultivation. 



6. The collection of fruits on the grounds of the experi- 

 ment Station has been materially increased, but special 

 attention is being given to developing varieties suited to 

 the more trying localities of the state. 



7. As a result of spraying apple trees with Paris green, 

 it was found that all sprayed trees had less wormy fruit 



