A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 102
hen she is near-est the sun (144). Though nearer the sun in January than in July, still,as the northern hemisphere is then inclined from thesun, his rays strike its surface obliquely; less light fallsupon the same space than if its contact was more direct,and it is consequently cold. But in July,… … 1. The comparative amount of light received in the northern hemisphere in July andJanuary may be illustrated by the accompany-ing: figure, in which the rays of light at dif-ferent seasons are represented to the eye. InJanuary, they are seen to strike the northernhemisphere obliquely, and…
Astronomy
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