440 Bulletin 167 



The moisture ranged from 26.75 to 3&-7 2 < averaging 32.23$ . 



The sucrose variations, inasmuch as the invert sugar is low, 

 follow the water content quite closely. The minimum found was 

 57.01, the maximum 69.59 an( ' tne average 64.79' < . 



The invert sugar variations of from 0.24 to 1.56, witli the 

 average of 0.74%, indicate quite conclusively that the inoculating 

 organisms were not invert sugar formers. 



The total ash as recorded in the moisture free basis table 

 is below standard in Nos. 103, 10 r, 91 and 94. The insoluble 

 ash meets all requirements in every case, while the malic acid 

 value is low in four instances, Nos. 102, 101, 100 and 93. 



Group 9. Composites. The saps from which this group 

 of sirups was made were severally inoculated with from two to 

 six organisms, hence the results are the product of a mixed infec- 

 tion. The object held in view in this procedure was to ascertain 

 whether the presence in considerable numbers of two or more 

 organisms would serve to stimulate or to reduce specific indi- 

 vidual action. The flavor of all four samples was impaired, 

 but the color was not as seriously affected. It is interesting to 

 note that No. 19, inoculated with a mixture of fluorescent bac- 

 teria, yeasts and molds, contained a high invert sugar percentage 

 and that the gray yeast used for inoculation purposes was the 

 same organism employed in the inoculation of Nos. 13, 28 and 

 i<>0 (table 23). in which the highest invert sugar contents ob- 

 tained in this investigation were found. 



