24 NEW YOKK STATE MUSEUM 



and is scarcely noticed by passing horses. It is very inexpensive 

 to operate, as a gallon of gasoline is sufficient for a day and it 

 requires so little attention that a tyro can run it. The smallest 

 size Gould 3-piston pump is the one used with the motor, al- 

 though Dr Southwick now recommends a larger one in order to 

 utilize the power more fully. The motor costs |250 and the pump 

 about |50. They can easily supply four lines of hose, although 

 in Albany not more than two can be used to advantage in most 

 places. 



In addition to the lines of hose and other requisites, Mr P. C. 

 Lewis, of Catskill, N. Y., who is in charge of the spraying in this 

 city, has several interesting devices for saving time and increas- 

 ing the efficiency of the work. He has designed a modified 

 stepladder, about 16 feet high with platforms for two men and 

 on two of its legs there are small wheels which permit ready 

 removal from place to place. It is so constructed that it can be 

 folded up and drawn behind the wagon when soime distance is to 

 be traversed. iHe also has in constant use a metal extension 25 

 feet long. The lower portion is composed of larger tubing, thus 

 making it stiffer and at the same time rendering it easier to 

 handle because the greater part of the weight is near the opera- 

 tor. This extremely long extension is suspended hj a rope from 

 the top of the modified stepladder in such a manner that the man 

 has only to guide the stream. This arrangement does away with 

 all climbing. In many instances the huge steps are placed in the 

 middle of the street and the trees on both sidles sprayed either 

 from the steps or the ground. 



Time and manner of spraying-. Though it is easy to state 

 the proper time to spray, in many cases it is exceedingly difficult 

 to have the recommendations properly carried out. As has been 

 stated, the beetles feed on the young leaves for a considerable 

 time before any eggs are developed and continue feeding for a 

 day or more between the deposition of each cluster. If the 

 partly unfolded leaves are sprayed in the early spring, the beetles 

 can be killed and the production of eggs prevented. This is very 

 desirable, for if at all mumerons the beetles injure the foliage 



