DISCUSSION OF MANUFACTURING DATA. 



51 



of one containing a smaller percentage. In Ohio during the 1909 

 season some camps were running as high as 50 to 60 gallons of sap 

 to the gallon of sirup. In the eastern regions 40 to 50 gallons were 

 used, indicating a sap with 1.5 per cent of sucrose. The figure 

 obtained in the greater number of cases varied from 30 to 40 gallons, 

 and in a normal year this amount is sufficient. 



In the older 

 camps there were 

 still found a good 

 many wooden 

 buckets, but in 

 most cases they 

 were being gradu- 

 ally replaced by 

 metal ones. In the 

 more recently 

 established camps 

 both galvanized- 

 iron and tin buck- 

 ets were used, many 

 maintaining that 

 the latter rust less 

 quickly. This 

 rusting was pre- 

 vented by the more 

 progressive makers 

 by pa in ting the 

 buckets inside and 

 out. An average 

 of all the camps 

 visited places the 

 number of metal 

 buckets used far 

 ahead of the num- 

 ber of wooden ones, 

 but remarkably few 

 covers were used. 

 In some sections 

 their use is un- 

 known, while in others they are found in the majority of cases. The 

 following figures were obtained from the reports made in this in- 

 vestigation: In Indiana only 3 out of 20 makers used covered buck- 

 els; in M.-iiiie not one of the camps visited used them; in none of the 

 10 Massachusetts camps and in only 4 out of 22 in Michigan and in 

 4 out of 14 camps in New Hampshire were the covered buckets 

 found; in Vermont only 5 out of 26 makers had a complete set of 



FIG. 3. Open buckets and too many of them. 



