flotation anti Arrangement 13 



form triangular beds, that for convenience may be 

 called the third or outer row of beds. 



Now if radiating lines be drawn from the corners 

 of the crescents to the centre of the plan the point 

 where they cross the third circle will be the upper 

 corners of the first row of beds the lower corners 

 being formed by the point where the radii from the 

 centre and left corners of the crescents cross the sec- 

 ond circle; the third and second circles forming the 

 upper and lower sides; the ends being formed by 

 curved lines drawn from the upper to the lower cor- 

 ners. Or, having completed the row of five crescents 

 and five triangular beds, mark off with pole or 

 ruler radiating lines from the corners and centre of 

 each crescent to the centre of plan ; the point where 

 these radii from the circle of crescents cross the third 

 circle will be the upper corner of the first row of beds; 

 the lower corners being formed by the radii from 

 the centre and left-hand corner of crescents; the ends 

 being formed by curved concave lines from upper to 

 lower corner the intervening spaces forming paths. 



For Laying Out the Beds 



USE a long pole with a sharp stake passed through 

 a hole at one end and fastened with a nail 

 driven through it horizontally, so that it can turn 

 easily, with a number of holes for pegs at the required 

 distances six, eight and one-half, twelve and one- 



