2^6 



TJSE BEE-KEEPERS' REVIEW. 



indeed, that the hands can be dipped into it 

 with impunity, and I do not know but we 

 could drink quite a quantity of it with no 

 injurious results. It certainly cannot be 

 poisonous to man or to bees any more, it 

 seems to me, than soap used for lubricating 

 rolls in foundation making. We find that 

 there is a very slight residue of particles of 

 soap left on the foundation, and this is not 

 objectionable to bees." 



Upon another page of the same issue 

 Ernest gives the following : — 



"Since that article from C. P. Dadant, 

 and our footnote on page 702 were put in 

 print, we have been making experiments. 

 We took about 100 lbs. of wax, rendered 

 with sulphuric acid, and placed the same in 

 our regular melting-vat. From this we dip- 

 ped wax sheets the same as we did for mak- 

 ing foundation. There was absolutely no 

 odor to these sheets, and absolutely no taste 

 after chewing pieces of them for half an 

 hour. To go a little further and make the 

 test sure, we went to the druggist's and got 

 what is known to chemists as blue litmus 

 paper. This is so sensitive that it will show 

 the least trace of any acid or alkali in a sub- 

 stance. If there is a trace of acid, the blue 

 litmus on being dipped into the solution in 

 question will turn red. Red litmus paper 

 will turn blue in a mixture having a slight 

 trace of alkali. Well, we dipped some of 

 this litmus paper into melted wax that had 

 Ijeen rendered hy sulphuric acid ; and, quite 

 to our astonishment, it showed absolutely 

 no trace of sulphuric acid left; i. e., the paper 

 showed no tendency to turn red. We re- 

 peated the experiment in a number of differ- 

 ent ways, with the same result. We feel 

 very sure now that wax rendered by sulphu- 

 ric acid, after being made up into founda- 

 tion, can have no possible bad effect. We 

 will admit that the cakes direct from the 

 melting tank of the sulphuric acid mixture 

 do have a very slight odor ; but on remelting 

 for making foundation, this odor seems to 

 be all volatilized, or done away with in some 

 shape or other. 



There is another point, perhaps overlooked 

 by our friend C. P. ; and that is, that sul- 

 phuric acid has a specific gravity 'i^o times 

 that of water ; and by the methods which 

 have been described in Gleairhtgs, after the 

 dirt and refuse have been boiled in the sul- 

 phuric acid mixture the melted mixture is 

 allowed to stand for flre hours. The wax 

 comes to the surface and is dipped off. 

 The acid, having a specific gravity 2}4 times 

 that of water, settles to the bottom, and 

 leaves the wax entirely, or at least practi- 

 cally, free. This shows that there is a very 

 slight trace or practically no acid left in 

 the original cakes. These cakes, on being 

 melted up again to dip into sheets for foun- 

 dation, are, so far as we are able to observe, 

 perfectly wholesome and fit for the bees. 

 There may be some missing links that we 

 have overlooked. If so, our friend C. P. 

 will straighten us out, for he is a keen ob- 

 server and a bright bee-keeper : but in this 

 we think he will admit our premises after he 

 has tried the tests himself as above de- 

 scribed." 



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