100 
ister has been established at 20 Signal Service stations, the list of 
which is given in our tabular data. This tabular matter is omitted 
from this present edition, and these records will undoubtedly be so 
fully published as to be available to the student. Such photographic 
sunshine records are complementary to the ordinary record of cloud- 
iness and of personal observations of the area apparently covered by 
clouds. But as the photographic register, strictly speaking, records 
only the cloudy condition of the sky in the immediate location of the 
dise of the sun, while personal estimates of the amount of cloudiness 
refer to the whole sky (above an altitude of 15°, 30°, or 60°, according 
to the various rules adopted by observers), therefore there is room for 
quite a discrepancy between the personal and the photographic record, 
and it is still a question as to which is more appropriate for agricul- 
tural study.* 
In order to know the cloudiness, sunshine, and rainfall at a few 
stations representative of the district in which cereals are grown in 
America, I have added to the stations in the United States, which will 
be published by the Signal Service, the following table for 1887 
compiled for Winnipeg, Manitoba (lat. N. 49° 40’, long. W. 97° 10’), 
from the data published by Carpmael (1890), from whose report 
other records may be obtained. 
Sunshine and climate of Winnipeg. 
Rainfall. | | Average duration Sf ott pee oe in percentage 
Aver- ; 
Month (1887). | Num- orerall | | Wess 
Inches. ‘| iness. 5 a.m. |6a.m. 7a.m./8a.m. 9a.m. sian ae 12 ne 
days 
| P. ct. | 
PANUAEY a eeesee see 0.00 Ua ee ae LO pe cee ee ee eo 2 40) 54 71 70 
February _........-- T. Laas ieee Ble aes le 80 bes)! “tens oer 7 
March. 2s4 2-2-2! logit Dil Pp BOs A ceed 25 Voces (122), ABA ceB5ielt UBB al und bd 
Aprile 2 ee | 0.25 4| 51 15, | 332 | hasan Byel omiee 7 
May eros ee eos SiO gti. and 3| 29| 53] 53| 55] 59] 65 59 
Shiite ees he tanta | 2.94 12| 50 30 45 | 57 EY 60| 62 78 74 
Tully eee 1.98 13| 54 20 5D 63 | 67 68 66 74 78 
INGE SIT ee, ce 1.49 15 Bi le 25: | 1b; | 42 59 67 73 72 71 
September _........- Visadeth | 2 18!) = eail Eee | 8) ar) Sr an es 11 
October ___....-.-.-- 0.25 PO ar sver FR ER eared as eet 22 28) 48 44 48 52 
November -:2---:-.- r 1 BO) |e sccl cent sees eae Salagco 48 60 51 
December. ----_----- T 1 | 65)1 | Reesor Sue 02 ee ee ea 26 42 | 43 
@ Blaborate comparisons of these records were published from month to month 
in the Monthly Weather Review during 1892-1897. 
