Septkmbkr, 1920 



G L E A N I N O S IN BEE C U I. T IT H E 



5:?9 



Now as 1(1 results: Noiie of tlio rats on 

 these tliree diets lirst mentioneci was aljle 

 tu tlirive and jjrow in a normal manner, and 

 therefore all three diets were deficient in the 

 Water st)luble \itamine. Apparently, there- 

 fore, neither the blended honey nor tlie 

 white-elover honey contained sutScient Wa- 

 ter-soluble B to permit normal growth wlien 

 they were present in the diet, nor to permit 

 the resumption of normal growth ^vheu 

 they were added to a diet containing none 

 of this vitamine. 



However, while the addition of extracted 

 lioney to the diet did not permit normal 

 growth it did slightly increase the growth, 

 so that at the end of five weeks, in the case 

 of one group there was a difference of 9 

 grams between the "starch rats" and the 



in the connlry. Tie soys: "Of the eight 

 lats fed comb honey, all but one showed a 

 cessation of decline and distinct gains in 

 weight. The one rat was apparently beyond 

 recovery by dietary change. In fact, all 

 the rats given comb honey were already 

 showing indications of the dietary deficien- 

 cy. Comb honey showed a resuiiiptiun of 

 growth in these animals, indicating the pres- 

 ence of distinct amoiuits of Fat-soluble A. 



"For comjiarison the comb honey diet was 

 followed by one containing butter in 

 amounts of 5 to 10 per cent. Butter is 

 known to be rich in the fat-soluble vitamine. 

 Hence, the fact that the rats grew about 

 as well on comb honey as where 5 per cent 

 of butter was added indicates that comb 

 honev contains a moderate amount of fat- 



Grai 



>y\;it, ad^U 



Qomb aAa>iO 



Buffer S-.% tWc/cJ 



10 H^ecii 



"honey rats;" in the other group the dif- 

 ference between the "starch rats" and the 

 "honey rats" was 17 grams in favor of the 

 honey. 



To quote Professor Hawk 's own words, 

 ' ' The differences were not great enough to 

 be entirely conclusive, but may most reason- 

 ably be considered to indicate the slightly 

 greater efficiency of honey for growth, due 

 to the presence of small amounts of the wa- 

 ter-soluble vitamine. ' ' 



THK experiments to determine the pres- 

 ence of the Fat-soluble A vitamine 

 were conducted in much the same man- 

 ner, except that in this case comb honey was 

 also used in the feeding experiments. Now, 

 please, everyone pay attention to what I 

 am about to quote from Prof. Hawk, for it 

 should interest everv bee and honev lover 



soluble vitnniiue, and that the comb is rel- 

 atively rich. ' ' 



These rats, like the first groups, were later 

 fed milk to show that any failure to grow 

 had been solely due to a dietary deficiency. 



Extracted honey, added to a diet known 

 to be deficient in Fat-soluble A, showed a 

 slight gain in weight in some of the rats, 

 but hardly enough to be conclusive. How- 

 ever, Prof. Hawk says, "That a minimal 

 amount of Fat-soluble A may be present in 

 extracted honey would be indicated further 

 by the fact that our data show it to be pres- 

 ent in comb honey." 



NOW, please turn to the accompanying 

 diagram, study it carefully and see if 

 it isn 't enough to make a colony of bees 

 buzz with pride. I shall have to admit that 

 1 selected what I thought the finest diagram 

 {ConliiiUfd oil payi' 366.) 



