degrees--the distance from the pole to the equator--there remained thirty- seven degrees. cyrus harding concluded， therefore， that lincoln island was situated on the thirty-seventh degree of the southern latitude， or taking into consideration through the imperfection of the performance， an error of five degrees， that it must be situated between the thirty-fifth and the fortieth parallel.
按道理，当影子的长度缩到最短的时候，应该正是中午十二点钟，仔细地看着影子的末端，就可以找出影子在逐渐缩短以后，又开始伸长的一刹那。赛勒斯?哈顿把标杆偏向和太阳相对的方向，就可以使影子长一些，因此它的变化就更加容易看清了。日晷的时针愈长，针点的移动也就愈加容易辨别。标杆的影子也就相当于日晷上的指针。
in fact， the moment when this shadow would reach its minimum of length would be exactly twelve o'cl
第66章知识(14/23)