202 THE CONNECTICUT POMOLOGICAL SOCIETY. 



sliould always be equipped with an ag'itator and be made to 

 accommodate two leads of hose. Barrel outfits are suited to 

 orchard work where the trees are not more than fifteen feet 

 in height. Many of the barrel pumps are incapable of producing 

 sufiicient pressure for two leads of hose and, for this reason, 

 the double-acting or double-cylinder pumps are recommended. 

 Generally these pumps are used with the tank outfits, as de- 

 scribed in the next paragraph, but may also be used with a 

 barrel on a wagon, large stone boat or sled. 



Tank Outfits. Tank outfits are of large capacity and 

 are operated either by hand or by power from a steam or gas- 

 olene engine. They consist of a large tank of about 100 to 

 500 gallons capacity and are mounted on a four-wheeled truck 

 with wide tires. Horizontal tanks with a half-round bottom 

 are preferred. Those for spraying tall trees are equipped 

 with a tower or elevated platform with a railing around it. 

 Those operated by hand are usually equipped with a horizon- 

 tal pump of the double-acting or double cylinder type. They 

 may be operated by either one or two men. Three or four 

 leads of hose are frequently used, but it is seldom advisable 

 to use more than two, one by the man on the tower and one by 

 the man on the ground. The agitator is usually operated 

 by a sprocket gear attached to one of the wagon wheels. These 

 outfits are very suitable for mature apple orchards of moder- 

 ate size. 



Outfits with which steam or gasolene power is used vary 

 greatly in capacity and mechanical construction. Since our 

 commercial orchards are usually located on hilly lands, where 

 it is difficult to transport these heavy outfits, their chief use 

 in Connecticut is in spraying shade trees around cities and 

 towns. The gasolene outfits are much lighter and more com- 

 ])act than the steani outfits and may prove serviceable in the 

 larger commercial apple orchards, especially those on level 

 ground and with very large trees. Such outfits are more 

 economically operated than hand pumps and have the addi- 

 tional advantage of producing abundant pressure. 



Compressed-air Outfits. These are contrivances spe- 



