218 Mr. S. A. Hill. On the Constituent of [Dec. 22, 



Table II.— 12th November, 1879. 







Mussooree. 







Dehra. 





-Hour. 



















Appt. time. 



















csec z. 



r ods. 



; r comp. 



T»i'-PP 



JJ1EL. 

 



oec z. 



T ODS. 



r comp. 



JJiir. 



8 A.M. .... 







^ -on 



744 



1 736 



o 



— o 







o o» 



622 



610 



22 



9 „ .... 



2-36 



873 



! 852 



-21 



2-34 



764 



762 



_ 2 



10 „ 



1 -80 



907 



898 



- 9 



1 -79 



817 



824 



+ 7 



11 „ 



1 -56 



925 



! 918 



- 7 



1-55 



851 



853 



+ 2 



Noon .... 



1-50 



934 



! 924 



-10 



1-49 



850 



860 



+ 10 



1 P.M 



1-56 



915 



I 918 



+ 3 



1-55 



840 



853 



+ 13 



2 „ .... 



1-80 



876 



' 898 



+ 22 



1 -79 



847 



824 



-23 



3 „ .... 



2-36 



832 



: 852 



+ 20 



2-34 



771 



762 



- 9 



4 „ .... 



3 -90 



727 



! 736 



+ 9 



3 -89 



596 



610 



+ 14 



Mean R= 1064 log E = 3 -0271 



Km = "04106 for decimal logs 



= "09454 „ natural „ 

 K D = "06209 „ decimal „ 

 = "14297 „ natural „ 



Table III.— 14th November, 1879. 







Mussooree. 







Dehra. 





Hour. 



















Appt. time. 



















Sec z. 



r obs. 



r comp . 



Diff. 



Sec z. 



r obs. 



r comp. 



Diff. 



8 A.M. 



3-99 



785 



762 



-23 



3 97 



639 



617 



-22 



9 „ .... 



2-38 



888 



892 



+ 4 



2 -37 



766 



786 



+ 20 



10 „ .... 



1-82 



941 



941 







1-81 



848 



855 



+ 7 



11 „ .... 



1-58 



966 



963 



- 3 



1 -58 



883 



884 



+ 1 



Noon .... 



1 51 



978 



970 



- 8 



1-51 



892 



894 



+ 2 



1 P.M 



1-58 



947 



963 



+ 16 



1-58 



899 



884 



-15 



2 „ .... 



1-82 



938 



941 



+ 3 



1-81 



849 



855 



+ 6 



3 „ .... 



2 -38 



873 



892 



+ 19 



2 37 



780 



786 



+ 6 



4 



i .... 



3-99 



762 



762 







3-97 



620 



617 



- 3 



Mean E= 1123 nearly log E = 3 "050483 



Km = '04231 for decimal logs 



= -09742 „ natural „ 



Kd = '06546 „ decimal 



= "15063 „ natural „ 



These tables suggest two independent methods of inquiring which 

 among the atmospheric gases has the greatest power of arresting 



