This historic book may have numerous typos and missing text.
Hence, the difference of longitude on th.
We now have two Sumner linee, A\'and B\', under Case I, whose common latitude is 25 19MS., and whose longitudes on the common parallel are 114 61K.7 and 115 31\'.5.
B115 31.5 W. 1920 Excerpt: ...is the same as the latitude of the point on the line A\', R/J 25 19\'.4 S.
Not illustrated.
Not indexed.
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This historic book may have numerous typos and missing text