NO. lO SOLAR RADIATION AND WEATHER STUDIES ABBOT 6 1 



:J 



c 



d 



S76 I 1877 I 1878 | 1879 T 1830 1881 I882_ _ 



iS 



99 I 



1 1899 1900 1901 1902 -1903 i 1904 I 1905 



u 



-^—2^St 



LAKE \ 0\N T A\RM O 



i----i- 



1919 i 1920 I 1921 



■ r^i^f- 



1923 I 1924 1 1925 



ig^yj-jiiaii^l 



siii 





:e about the sixth year, also approximate repetition of features a, h, c, d. 



