Page:Spalding's Baseball Guide (1894).djvu/138

 F H, and continue same until they intersect at the points T W and W.

THE CAPTAIN AND COACHER'S LINE.

With R and S as centres and 15 feet radius, describe arcs cutting lines R W and S T at X and Y, and from the points X and Y draw lines parallel with lines F H and F G, and continue same out to the boundary lines of the ground.

THE THREE FOOT LINE.

With F as centre and 45 feet radius, describe an arc cutting line F G at 1, and from point 1 out to the distance of three feet draw a line at right angles to F G and marked point 2; then from point 2, draw a line parallel with the line F G to a point three feet beyond the point G, and marked 3; then from the point 3 draw a line at right angles to line 2, 3, back to and intersecting with line F G and from thence back along line G F to point 1.

THE PITCHER'S PLATE.

With point F as centre and 60.5 feet as radius, describe an arc cutting the line F B at a point 4, and draw a line 5, 6, passing through point 4 and extending six inches on either side of line F B; then with line 5, 6 as a side, describe a parallelogram twelve inches by four inches.

THE BASES.

Within the angle F, describe a square the sides of which shall be 12 inches, two of its sides lying upon the lines F G and F H, and within the angles G and H describe squares the side of which shall be 15 inches, the two outer sides of said square lying upon the lines F G and G I and F H and H I, and at the angle E describe a square whose side shall be 15 inches and so described that its sides shall be parallel with G I and I H and its centre immediately over the angular point E.

THE BATMAN'S LINE.

On either side of the line A F B describe two parallelograms 6 feet long and 4 feet wide (marked 8 and 9), their length being parallel with the line A F B, their distance apart being 6 inches added to each end of the length of the diagonal of the square within the angle F, and the centre of their length being upon said diagonal.

The Home Base at F and the Pitcher's Plate