162 THE ALUMNI JOURNAL 



fully the source of this unknown substance and watching for a favor- 

 able opportunity, abstracted a few ounces from its hiding place and 

 took it to an analytical chemist for analysis, carefully concealing the 

 purpose for its identification. This assistant carried this secret to 

 several new companies, several of which have since failed, greatly 

 benefiting his personal assets thereby. 



Thus the secret leaked out and some time before the Food and 

 Drugs Act at least a dozen manufacturers were using it. 



Kebler reports that many samples free from acetanilid have been 

 known to develop an odor of aldehyde upon standing some length 

 of time, indicating the presence of alcohol. Distillation, however, 

 fails to give positive results with the iodiform tests. By testing a 

 sample direct affirmative results were obtained. The distillate gave 

 the usual reaction for aldehyde with Tollen's reagent and with 

 fushsin and sulphurous acid. Flicorids have been noted in several 

 samples in minute quantities. Boric acid has been found in one or 

 two instances. Several samples which were examined by Kebler 

 showed the presence of caffeine. 



PACKING FOR SHIPMENT. 



Many of the larger manufacturers put peroxide in barrels and 

 ship to the bottler. New barrels are selected for this purpose with 

 a thick coating on paraffin wax on the inside, as contact with wood 

 for any length of time decomposes the solution. It is also shipped 

 in ten-gallon carboys and, of course, glass bottles of various sizes. 

 In view of the low price at which peroxide is now sold, one of the 

 bottlers' greatest difficulties is filling. As no metal of any descrip- 

 tion should come in contact with it, it follows that only glass and 

 rubber can be utilized and up to the present time no satisfactory 

 bottling device has been produced to handle this article. Each manu- 

 facturer or bottler has had the experience of constructing a filling 

 machine more or less complicated, usually at considerable expense, 

 which failed to do the work as it was easily broken, the glass or 

 rubber hose parts being too fragile. Most bottlers use a simple 

 glass syphon or rubber hose, the rubber hose being preferable on 

 account of its flexibility. Some fillers can operate a hose with each 

 hand at the same time. Before the standard peroxide bottle came 

 into general use, some ingenious persons immersed the bottles en- 

 tirely in the solution, filling them full to the lip, afterwards removing 

 them and placing them in a drain trough. 



