some Copper Salts in Aqueous Solution. 333 



Table VIII. contains the details of the measurements made 

 on the solutions of copper salts. 



Under c are found the concentrations of the solutions, in 

 gram equivalents of salt in 1 litre of solution ; under I the 

 length of layer in centim. ; e is the extinction-coefficient, and 

 A the absorption-ratio. 



Table VIII. 



Copper i 



Sulphate. 







c. 



I. 



Eegion in 

 Spectrum. 



(1-?). 



I.e. 



A. 







A. A. 









2-0324 



1006 



627-7—599-4 



0-083 



1-08096 



1-89 







599-4-574-2 



0-2944 



0-53102 



3-85 







574-2—551-6 



0-4930 



0-30714 



6-66 







551-6—5341 



0-6985 



0-15582 



1312 







534-1—518-2 



0-8171 



0-08774 



23-25 



2-0324 



764 



551-6—534-1 



00611 



1-21424 



12-79 







534-1—518-2 



0-2220 



065357 



23-76 







518-2—502-3 



0-4454 



0-35130 



44-20 







502-3—488-3 



0-6716 



0-17286 



89-8 



2-3803 



2287 



518-2-5023 



0-0697 



1-15643 



4707 







502-3—488-3 



0-2490 



0-60386 



90-15 







4883—474-6 



0-5021 



0-29925 



181-9 







474-6—462-8 



06734 



017176 



316-9 







462-8— 452-2 



0-7723 



0-11220 



485-2 







452-2-443-1 



8103 



009137 



595-8 







443-1—434-2 



0-7873 



0-10384 



523-0 







434-2—427-0 



0-7846 



0-10535 



516-7 



0-2856 



7-64 



627-7— 599-4 



0-0614 



1-21468 



1-796 







599-4—574-2 



0-2290 



064017 



3-408 







574-2—551-6 



0-4700 



0-32791 



6-654 







551-6—534-1 



0-6880 



016242 



1343 



02842 



22-87 



574-2—551-6 



0-1077 



0-96793 



6-715 







551-6—534-1 



02930 



0-53305 



12-19 







534-1—518-2 



0-5086 



0-29361 



2214 







518-2—502-3 



0-6884 



0-16216 



40 08 







502-3-488-3 



0-8377 



007690 



84-52 



Copper Chloride. 



4-211 



1-006 



599-4—574-2 



00799 



1-09711 



3-86 







574-2-551-6 



0-2403 



0-61918 



6-84 







551-6—534-1 



0-4971 



0-30355 



13-95 







534-1—518-2 



0-6987 



015573 



27-20 







518-2—502-3 



08339 



0-07888 



53-70 







502-3-488-3 



0-8764 



005731 



73-92 







488-3-474-6 



0-7981 



0-09797 



4324 







474-6-462-8 



0-6591 



0-18109 



23-39 







462-8-452-2 



0-4131 



0-38395 



1103 







452-2—4431 



0-2104 



0-67687 



0-26 



Phil. Mag. S. 5. Vol. 33. No. 203. April 1892. 2 A 



