AUXILIARY WORK. 129 



Tho prec'odint( t!il>lo c^ivo.s the details of eit^ht of Mr. Ilawley's 

 experiments. The experiments arc distinguished bj' numbers (1-8), 

 and the formula? used by letters (A, B, and C). Mr. llawley's notes 

 on these experiments were written chiefly on two dates, the first 

 immediately after the estimates of foliage were made and the second 

 shortly after the fruit was gathered. His statements in general are 

 given in the following notes: 



Experiment I: 



June 23, 1894.— This experiment was made under rather unfavoralile oireum- 

 staucef, a.M the wind came up quite strong after I had c()mmenee<l, and consequently 

 I could not do the work a.s thoronglily a.s I wished, but the results now promise to 

 be entirely satisfactory. The foliage is perfectly fresh and green, and apparently the 

 peaches are going to hang on. Another thing that now appears to be well estab- 

 lished is that the earlier spraying is the tetter. [See notes under experiment 2.] 

 There is now quite a perceptible difference to be noticed between early and late 

 spraying as regards the foliage. 



October 1, 1894. — This experiment has demonstrated the effectiveness of the spray 

 used. While the crop was not large, owing to the unhealthy state of the trees 

 from leaf curl last year, yet it was about three times as large on the spraye<l as on 

 the unsprayed trees. The frviit was much nicer. I could easily pick out the baskets 

 of fruit from the sprayed trees. 



Experiment 2: 



June 23, 1894. — This experiment has given entire satisfaction so far, as the foliage 

 of the trees is perfect and the fruit is hanging on well. This experiment, taken in 

 connection with the others, indicates that the blue vitriol solution, C, acts quicker 

 than the sulphur solution. The winter sjjrayinga seem fully as effective with the sul- 

 phur solution as with the blue vitriol, but the spring spraying is not quite as good. 



October 1, 1894. — While the difference in the amount of fruit gathered from the 

 sprayed and unsprayed trees is not as great as in some of the other experiments, yet 

 the effect is fully as apparent, for these trees were not nearly as badly affected last 

 year as some others, and consequently they all had a fair load of fruit. Tliere was £l 

 far greater difference noted in the foliage than in the fruit. 



Ex/perimeM 3: 



The first spraying of this experiment was on January 19, and was followed by a 

 heavy rain storm," which lasted twenty-four hours, and will undoubtedly prevent the 

 full benefit of the work from being realized, but the work was very thoroughly done 

 and may be effective. 



June 23, 1894. — The second spraying was well done, and at this date the effect 

 seems to show (1) that formula B is not strong enough to have the desired effect; 

 and (2) that two sprayings are not much better than one, provided the work is 

 thoroughly done with one spraying, and provided, also, the spraying is followed by 

 good weather. 



October 1, 1894.— This experiment has given greater satisfaction than anticipated. 

 The proportion of sprayed to unsprayed fruit is better than expected at the time of 

 the estimate on the loss of foliage. 



Experiment 4- 



June 23, 1894. — The contrast between the sprayed and unsprayed trees at this date 

 is very decided in this experiment. The first spraying was on the same date as 

 experiment 3, and followed by rain. The last was done April 12 with formula C, 

 and was well done, and the trees now look fine. 

 19093— No. 20 9 



