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several parts of the world; but as we do not have positive evidence from all parts of the world it is assumed that this law is true everywhere, and this assumption is based upon the strongest grounds, viz:—the great analogy usually existing in the laws of nature, and the fact that every new investigation affords fresh proofs of the truth of the law in both hemispheres.
Having thus established the law of motion of the winds in a tpyhoon, we have only to consider whether we are north or south of the equator in order to locate the centre; if north we know that the winds rotate from right to left, contrary to the watch hands, or from S. to E. by N. to W., and also that the N. compass point is the E. typhoon point, that is the wind blows East.
The W. compass point is the N. typhoon point, the S. compass point is the W. typhoon point, and the E. compass point is the S. typhoon point; hence, to locate the centre as to bearing or direction, stand in the middle of a compass (or imagine such a thing) and look towards the typhoon point, or in the winds eye, and the centre will be on the right hand, and to prove this strike off a small circle and let the circumference represent the wind circle in a typhoon; then draw a straight line through the centre of the circle so as to cut the wind-circle, and it will do so at right angles. Draw another line through the centre, at right angles to the first, and it will be found at a point 90 degrees to the left of the first line or where the second line cuts the wind-circle. The direction of the wind will be parallel to the first line; hence, standing at this point and looking in the direction of the wind’s eye, and parallel to the first line the centre will be 90 degrees to the right, or on the right hand.
As a practical example I will take the typhoon which passed over Yokohama on August 25th, 1872, and which this diagram is intended to represent. The wind in the commencement of this gale was E. S. E., and according to the above rule of looking into the wind’s eye and having the centre on the right hand, in this case it ought to bear S. S. W., and this was exactly the case as shown by
