Smoking French Vineyards. 



119 



able to assess their pro-rata share upon such inhabi- 

 tants of the districts as refuse to join, and that 

 these assessments may be collected by the tax- 

 gatherer, a provision which it. would be easier to in- 

 troduce and enforce in France, perhaps, than in this 

 Country." Fig. 10 is an illustration of the protec- 

 tion of a vineyard, from Lestout.* 



Fig. 10. Smudge over a French vineyard. 



Making currents of air. Since frosts occur on 

 still nights, it is sometimes possible to prevent 

 them by keeping the air in motion, thereby mixing 

 the air and preventing any part of it from lying 

 on the plant until it shall have become frost -cold 

 by loss of radiated heat. In small areas, as in 

 choice gardens, it is often feasible to employ a man 

 at night to pass back and forth waving a large 



*The Lestoiit system has b>n nsed at Cornell with satisfaction. 



