©N PLANNING AND FORMING TLOWBR BEDS. 



219 



No. 3. 



No. 4. 



No. 3. — To divide a line into two equal parts, describe cor- 

 responding arcs at any distance on each side of A B, and from 

 ' one point where they cut to the other, strain your line, and it 

 will equally divide A B. 



No. 4.— Upon each side of A B, describe the triangle AC B 

 and ADB as in No. I. 



_--'c~^ 



No. 5. — From A and B. describe the arcs A C and B C divide 

 A B in D ; and again divide A D and B D in E and F, and from 

 E and F describe the half circles A G D and BHD. 



No. 6. — Draw AB, divide it and draw CD equal to two-thirds 

 ofAB. From CdrawCE, CF, each equal to the half AB; 

 and in the points E and F fix a stiff stick, on which slip the ends 

 of a piece of twine by loops, equal to AB, then carry a pointed 

 stick round by the twine, and the oval will be thus correctly drawn. 



