452 



Mr. S. U. Pickering on the Recognition of 



Table I. — Depression of the Freezing-Point of Water by 

 Propyl Alcohol. 



Experimental Kesults. 



Per cent. 



Depression. 



Mean 

 error. 



Per cent. 



Depression. 



Mean 

 error. 



2-027 



{ S} ^ 



•0050 



17-902 



{{&}*<" 



•0610 



3-974 



{K8}*» 







19-892 



llti}^ 



•0645 



5-867 



{iSo}" 1 *" 



•0045 



21-884 



P}«» 



•0305 



7-915 



{III?} 2 - 591 



•0075 



23-871 



J 8 * 614 18-550 

 \ 8-485 J 8550 



•0645 



10-025 



{»}•« 



•0040 



25-935 



{111!}*™ 



•0030 



11-917 



1 3"989 1 o.nno 

 1 3-997 1 3993 



•0040 



27-891 



{S} 9 ' 098 



•0385 



13-968 



(4-7821 769 

 \ 4-756 | 47by 



•0130 



29-902 



f 9-216 1 Q . 9n9 

 1 9-187 | 9202 



•0145 



15925 



{IS?} 5 - 562 



•0190 



31-878 



{ 9-469 } 9 ' 459 



•0100 



2 



•601 





18 



6-688 





4 



1-207 





20 



7-553 





6 



1-900 





22 



8-109 





8 



2-620 





24 



8-573 





10 



3-241 





26 



8-822 





12 



4-025 





28 



9-101 





14 



4-782 





30 



9-212 





16 



5-601 





32 



9-469 





