118 BOARD OF AGRICULTUEE. [Pub. Doc. 



it may be unreasonable to expect them to offer at once 

 fertilizers as rich in potash and as low in phosphoric acid 

 as I have recommended. 



Adjourned to 2 p.m. 



Afteknoon Session. 



The meeting was called to order by Secretary Sessions, 

 who called upon Professor Maynard to further explain the 

 apparatus which he had on exhibition in the lower part of 

 the building. 



Prof. S. T. Maynard. Two of the evaporators which 

 we have below, the Stahl made in Illinois, and the American 

 made in Pennsylvania, we obtained for determining whether 

 it would be profitable to evaporate our waste fruit. We ran 

 the American last year through two or three weeks, enough to 

 test it, and this year we have run the three kinds side by side. 

 These evaporators which are in the room below are too small 

 for profital)le use except perhaps upon a farm where you have 

 the help of children and other not very expensive labor. 

 The results from the tests which we have made are not 

 wholly satisfactory. We found that we could not evaporate 

 as much fruit as we could prepare by means of the parer and 

 slicers which we have, but they will illustrate the different 

 forms of evaporators which are in use. 



For spraying apparatus we have the force pump, the 

 power pump, the factory pump, as it is called. It sprays 

 automatically, the power coming from the horses, and a man 

 riding upon the machine is able to spray potatoes with no 

 effort except driving the horses. For spraying apple trees 

 and larger trees it is necessary to employ two men, one man 

 to drive, the other to manage the nozzle. The barrel pump 

 is placed in a cart, one man, the driver, pumping, while the 

 man who walks carries the nozzle, spraying trees, potatoes, 

 etc. There are two forms of the Douglass pump, made at 

 Middletown, Conn., which are adjustable to the side of a 

 barrel. The liarrel may be placed horizontally in the cart, 

 and by means of a cushion can be kept easily in place. The 

 other one, fastened to the head of a barrel standing on end, 

 would, in driving over rough ground, require to be kept in 



