December 1, 1870. ] 



JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 



427 



troduotion to the way of transferring a plan from paper to the 

 ground. Here it is transferred from one side of line a b, to 

 the other side. With radius 1 a, draw are a a; with radius 

 2 6, draw arc 6 ; with radius 3 c, draw arc c ; with radius 4 d, 

 draw arc d, meeting arc c where the line is cut ; with radius 

 5 e, draw arc e ; and with radius 6 /, draw arc /, and Jig. abc 

 is complete. 



Fig. 29. 

 To draw a corresponding figure, it will be necessary to have 

 recourse to other means than those employed in the formation 

 of the foregoing examples. From the points of the bed abc, 

 as shown in s s, draw line a b, bisect line A b, and draw line 

 c d, passing through point 1. Centre o is the principal point. 

 With the dividers find the distance from centre o to point 1 

 on line c d, turn the dividers round and find the same distance 

 on the other side, as point 7 ; from point 7, with the same 

 radius as 1 a, draw g g, which is equal to arc a a. Here a 

 pair of compasses with a pencil-leg will be necessary. Place 

 the steel point of the compasses on centre o ; extend the 

 pencil-leg to point 2 ; place the pencil on the exact point, then 

 turn the compasses round, and draw an arc as in point 8. 

 Next shift the steel end of the compasses to point c ; extend 

 the pencil to point 2 as before, placing the pencil exactly on 



end of the oompasses to point c, and place the pencil on 

 point 3. Remove the oompasses to point d ; with the same 

 radius as c 3, draw an aro in point 9, cutting the former arc 

 drawn from centre o. d 9 is equal to c 3. From point 9. with 

 radius 9 m, draw arc m. Arc m and c are equal. Find the 

 corresponding centres to 4, 5, 6 in the same manner, and draw 

 the corresponding arcs. When finished, A b d will be equal 

 to A b c. 



Fig. 30 is another exercise in the application of the above 

 method of forming a complicated figure. The left-hand side 

 of the figure, as a c d, is drawn without any reference to points 

 c and d. Bat to draw the corresponding part, b c b, it is 

 necessary to draw line A b, and erect the perpendicular line d c. 

 Points D and c are the principal points from which the centres 

 are taken from the left and transferred to the right-hard side, 

 BBC. Pat the steel end of the compasses down on point d ; 

 open the compasses and place the pencil on centre 1, from 

 which arc c is drawn, turn the compasses towards a, and 

 draw an aro as in point a. Shift the steel end of the oom- 

 passes to point c, open the compasses, and put the pencil down 

 on centre las before ; turn the oompasses towards a, and draw 

 an arc, cutting the former one drawn from point d, as shown 

 in a. Centre a is equal to centre 1. From centre a, draw 

 arc i, which corresponds with aro c. Find centres 2 3, 4, 6, 6, 7, 

 and 8 in the aeme manner, and transfer them to the right- 

 hand side. Draw the corresponding arcB d, e, f, g, h, k, and n. 

 From point c, draw arc s, uniting aroB e e, where the lines are 

 cut, as in 1 1. — M. O'Donneli, Gardener to E. Leeming, Esq., 

 Spring Grove, Richmond. 



Fig. 30. 



the point. Shift the steel end of the compasses to point d. 

 Seeing that points d and c are exactly the same distance from 

 centre o, draw an arc in point 8, cutting the former arc drawn 

 from centre o. Points n and 8, are equal to points c and 2. 

 From point 8, with the same radius as 2 6, draw arc k. Arcs 

 k and 6 are equal. Again place the steel end of the compasses 

 on the centre o, and place the pencil in point 3 ; turn the com- 

 passes round, and draw an are as in point 9. Shift the steel 



THE POTATO AND ITS CULTURE.— No. 2. 



PLANTING THE GENERAL CROP. 

 The time for planting cannot be exactly predetermined, and 

 I leave it as a period to be influenced by locality, position, 

 and Eeason. There are great diversities of opinion as to dif- 

 ferent methods of planting, and I will briefly state two of them, 

 and then detail the way which I consider and have proved to 

 be the best. 



Some dig the ground and plant it as they go on ; when a 

 space about a foot wide has been dug, a line is cut across, and 

 a small trench is cast out, manure iB put into the trencb, and 

 the set is placed on the manure (in some instances the manure 

 is placed on the sets) ; enough ground is then dug for another 

 row, and so on. 



The second mode is to manure and dig the ground required 

 for Potatoes, and insert the Bet by means of an ircn-chod 

 dibber ; the holes are then covered in with a rake. 



I will now narrate my own plan. Iu the first place, the plot 

 of ground which is selected for the crop, if very light, will need 

 nothiDg except some well-decayed manure to make it more re- 

 tentive of moisture ; but should the ground be stiff, mix well- 

 chopped meadow turf, not riddled or sifted, with a little lime 

 and leaf mould, and dig it in afull spade's depth. 

 The sets should bo whole Potatoes, about the 

 same size as a small hen's egg; the end having 

 a clnBter of small eyes should then be cut oS each 

 Potato, and those which are larger may be cut 

 into pieces, leaving on every Bet not less than two 

 eyes. In planting oast a line from one end of the 

 ground to the other. A man should then open a 

 hole with a small spade, or, which is better, a 

 grafting tool, such aB drainers use ; a lad should 

 then be placed in front of the man, and drop the 

 sets into the holes as they are made, and before 

 the spade is withdrawn, so that the withdrawal 

 of the tool may cover the set. 



When the young Bhoots make their appear- 

 ance above ground care must be taken to keep it 

 hoed, to subdue the weeds, and to keep the sur- 

 face from caking. If the weather be very cold 

 and wet, finely-sifted aBhes may be put over the 

 rows (just as the young shoots make their appear- 

 ance above ground) in the shape of a ridge, this will facilitate 

 the growth and protect the young plants. 



All early kinds of Potatoes may be earthed-up, but late va- 

 rieties do best not earthed-up, but observe they must be 

 planted more deeply than the earlies. This is not applicable 

 to the Potato in the field, for in many cases the soil does not 

 run deep enough. 



TAKING UP AND STORING THE PRODUCE. 

 The keepiDg of the Potato greatly depends upon the condition 



