HARVESTING AND MARKETING 93 
FIG. 30—RACK AND KNIVES USED IN NEW ENGLAND 
changes of temperature, and it does not break or ravel 
when folded or knotted. 
Rubber bands.—The use of rubber bands for fasten- 
ing asparagus bunches has recently been found to have 
some advantages not possessed by other materials. 
Prof. W. J. Green, of the Ohio Experiment Station, 
writes in Bulletin No. 9: ‘‘ The work can be done 
more rapidly and better. The saving in time is fully 
one-third, which will pay for the increased cost of 
rubber over string, reckoning wages at seventy-five 
