258 



Mr. C. Chambers. 



Run- 

 ning 

 No. 



Lunation commencing 

 new moon. 



(0) 



(1) 



(2) 



(3) 



(4) 



(5) 



(6) 



(7) 



(304) 



April 8, 



1872 



5 036 



5 



•185 



5 "534 



6 '325 



6 '562 



6 "922 



5 "745 



5 



•762 



(305) 



May 7, 





6-431 



6 



814 



6 -082 



6-139 



7-127 



6 -832 



5-894 



5 



•202 



(306) 



June 6, 





5-168 



6 



•157 



5-837 



5 -824 



5-734 



4-651 



4-368 



5 



•145 



(307) 



July 5, 





5-774 



7 



•443 



5 579 



5-162 



5-888 



5-694 



5-797 



6 



•071 



(308) 



August 4, 





6-957 



7 



•374 



6-545 



5-687 



5 -825 



5-763 



5-985 



6 



•717 



(309) 



September 3, 



„ f 



7-380 



7 



•347 



7'032 



7114 



7-620 



6-860 



6-037 



6 



•380 



6. The whole series of 309 lunations of Table III gives the follow- 

 ing results : — 



Phase of lunation. 



(0) 



(1) 



(2) 



(3) 



(4) 



(5) 



(6) 



JL 



4-34 



4-30 



4-07 



4-11 



4-34 



4-29 



4-06 



4-12 



a series which like that of Kew has a decided double period, having 

 maxima about new and full moon and minima about first and last 

 quarter. The sum of the four left-hand numbers (16*82) is the same 

 (sensibly) as the sum of the four right-hand numbers (16*81) . 



The winter lunations by themselves, of which there are 153, give — 





(0) 



(1) 



(2) 



(3) 



(4) 



(5) 



(6) 



(7) 







3-14 



3-05 



2-95 



3-01 



3-09 



3-00 



2-97 



3-03 



(B) 



Correction applicable to win- 





















- -08 



- -04 



- -01 



+ -01 



+ -03 



+ -03 



+ -02 



•00 





Corrected value of winter 























3-06 



3-01 



2-94 



3-02 



3-12 



3-03 



2-99 



3-03 



(C) 



and the summer lunations by themselves, of which there are 156, 

 give— 



Phase of lunation 



(0) 



(1) 



(2) 



(3) 



(4) 



(5) 



(6) 



(7) 



Value of range 



5-52 



5-52 



5-18 



5-18 



5-56 



5'56 



5-13 



5-19 



Correction applicable to sum- 





















+ -07 



+ -03 



- -01 



- -02 



-•03 



- -03 



- -03 



•00 



Corrected value of summer 





















5-59 



5 - 55 



5-17 



5-16 



5-53 



5-53 



5-10 



5-19 



The series (A), (C), and (E) are curved in figs. 2, 3, and 4. The 

 three curves are all double waves of regular and similar form and 

 agreeing in phase, and the two waves have about the same ampli- 

 tude ; but the range of the winter curve is much less, and that of the 

 summer curve much greater, than that of the annual curve. The 

 summer variation is very similar to that of Kew, but the winter vari- 

 ations, though agreeing in being of less range than the respective 

 summer variations, are quite unlike each other, that of Kew being 

 mainly a single period variation. 



