CHEMICAX SELECTION OF MOTHERS. 



71 



error which had been too frequently overlooked. It 

 was, however, recommended that they be twisted oflf 

 rather than be submitted to a slicing process, which 

 had led to many irregularities in the results. Instead 

 of a salt water bath, molasses was used as a medium. 

 Beets weighing about i^ lbs were thrown into it, 

 there being several baths of increasing densities, which 

 allowed a certain classification. While the method 

 has been abandoned for years, there are many experts 

 who still insist upon the weight being a basis of selec- 

 tion, for when the weight of beets increases, the density 

 of juice, total dry substances, the sugar percentage, the 

 purity coefficient and the proportional value decrease.* 



"Weight, kilos 



Density of juicet 



Dry substance, per cent. 



Sugar, per cent 



Non sugar, per cent 



Furity coefficient 



Proportional value 



Small 



."222 

 6.2° 



15.139 



13.49 

 1.64 



89.1 



12. 



Very L'rge 



1.49T 



5.80 

 14,190 

 11.65 



2.64 



82.1 

 9.5 



The analyses of looo beets in the Desprez labora- 

 tory gave the following results: 



From which we conclude that while small beets, 

 as a general rule, contain more sugar than large, 

 this is by no means invariable. For in this Hst it may 

 be noticed that the average weight of 226 beets was 

 0.603 kilo and averaged 14 to 15 per cent, sugaj; roots 



•Influence of the weight of beets on their saccharine quality (see 

 ZfiirZuckerindustriein Bohmen Jan. 1884). See for more important 

 detail the work o( Marek. 



tThe degrees eiven here are according to the French— To convert 

 into specific gravity prefix 10 and remove the decimal point two places 

 to the left, e g : 6.2^=1.062 speciflc gravity. 



