December 22, 18?«. 



JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 



48? 



and fleshy. The racemes are longer than the leaves, and very 

 stout. The sepals and petals are white dotted with lilac, and 

 the lip is of a deep rich violet. The raoeme would form a gor- 

 geous head-dress for a lady, especially if baoked with a few 

 sprigs of Maiden-hair Fern. It blooms in midwinter, and lasts 

 a very long time in perfection. Native of Barman. 



S. violaceom.— The leaves of tbis beautifal kind are usually 

 a foot in length, and about 2 inches broad. It somewhat re- 

 sembles S. giganteum in miniature. The beautiful racemes are 

 about the same length as the leaves, or a little longer, and 

 densely clothed with bloom. The sepals and petals are white, 

 irregularly dotted with mauve and lilac ; the lip violet in the 

 centre, mauve at the sides. This plant is somewhat difficult to 

 manage, but amply repays all ex'.ra care, as its beautifal and 

 cheering spikes of flwer are in perfection daring the dullest 

 season of the year. Native of Manilla. 



S. Harkisonianum.— This differs from the preceding only in 

 the colour of its flowers, which are pure white and very sweet- 

 scented ; indeed, it is considered by many a variety of S. vio- 



laceum, only it blooms during the winter months, and con- 

 tinues several weeks in full beauty if the flowers are not 

 allowed to get damp. It is a native of Pulo-Copang, a little 

 island in the China Sea. 



MESOSPETIDIOTI. 



A small genus of Peruvian Orchids, of whiojh onespeoies only, 

 as far as I am aware, is worthy of notice in this plaoe. It 

 succeeds best on a brock of wood, and must be grown in the 

 coolest part of the Odontoglossum houBe. 



M. sanguinebsi. — A small-growdng plant, resembling very 

 maoh some of the varieties of Odontoglossum Alexandras. The 

 pseudo-bulbs are small, oval, and compressed, bearing on their 

 summit two strap-shaped leaves. The flower-spike is pen- 

 dulous, and much longer than the leaves, bearing a profusion 

 of waxy, deep rose-coloured flowers, and as these are produced 

 all through the winter and spring, it is a valuable addition to 

 our cool-house winter-blooming kinds. Native of the Andes of 

 Peru. — Expebto Ckedk. 



GROUND LEVELLING AND PRACTICAL GARDEN PLOTTING.— No. 9. 



DRAWING PLANS. 



Tj draw and transfer fig. 32 to the ground, draw the square 

 A B c D, and draw the diameter lines e f and a H, also the diagonal 

 lines A c and b d. Draw lines 1 2, 3 4, 5 6, 7 8. From centre 

 a, being the point where line 1 2 orosses the diameter line a H, 

 draw arcc, meeting the two diagonal lines ; also from centre a 

 draw arc b, as shown by radius a b. With radius e f draw arc 

 /, meeting arc 6 in d. With radius d g draw arc g, meeting 

 arc 6 in e. From centre m, which is equal to centre a, draw 

 the corresponding arcs 6 and c, also arc n, as shown by radius 

 m n. From centre r on line 7 8 draw aro s. Arcs n and s 

 unite where the line is cut, each arc meeting the diagonal line 



a c. From centre t, with 



•radius t u, draw arc u. rp 7 



JProm centre o on lineE f 



draw an aro correspond- 

 ing to n, uniting with arc 

 at, and meeting arc n on 



the diagonal line. Draw 



the remaining portion of 



the plan in the same 



manner. 



To transfer the de- 

 sign to the ground. The 



base line a b is 40 feet 



long. Find points abc D, 



as described in fig. 31 ; 



insert a stake at each 



point, and lay a line from 



stake a to stake b, from 



stake b to stake c, from 



stake c to stake d, and 



from stake d to stake a. 



Lay the diagonal lines 



a c and b b, also the dia- 

 meter lines e f and o h. 



On each side of stake a 



measure 9 feet ; insert 



a peg at each point, as 



a 1 ! points 3 and 8. On 



e ich side of stake b mea- 

 sure 9_feet ; insert a peg 



at each point, as at 



points 4 and 6. On each 



side of stake c measure 



EQ 



Fig. 82.— Scale 12 feet to the inch. 



S 

 each 'point, as at 2 and 

 ;'5. On eaoh side of 

 stake d measure 9 feet; insert a peg at each point, as at 1, 7. 

 Lay lines joining points 1 2, 3 4, 5 6, 7 8 ; where the lines cross 

 each other, as line 1 2 and the diameter line o h, insert a peg, as 

 at point a ; also in lines 3 4 and g h insert a peg, as at point m ; 

 also in 7 8 and e f insert a peg, as at point o. From the peg at 

 point a, on lines 1 2 and s H, with a string 8 feet 4 inches long, 

 trace arcs c and n ; reduce the string 3 feet 4 inches and trace 

 are 6 until it meet line 1 2, as at points e and d ; insert a peg at 

 each point. Radius e is 9 feet 9 inches from the peg at point 

 ■e; with a string 9 feet 9 inches long trace arc f, meeting arc 6 



in point d. Shift the string to peg d, and with the same radius 

 as ef trace arc g, and the bed is traced. Insert pegs 6 or 

 7 inches apart on the lines traced. The pegs must be put up- 

 right into the ground, and exactly in the line traoed, so that 

 when the line is laid round the pegs to cut out the bed it will 

 have an equal pressure on all the pegs. By this simple ar- 

 rangement the beds will be perfeot. From the peg in point m, 

 on lines 3 4 and G H, trace aros b, c ; trace arcs / and g as the 

 corresponding aros are traced from points e and d in bed a. 

 From point m trace aro n, as shown by radius m n. On line 



7 8, from peg 8 measure 4 feet 8 inches ; insert a peg as at 



point r ; from the peg 



& 5 C at P oint r, with a string 



3 feet 8 inches long trace 

 arc s, as shown by the 

 radius r s, and uniting 

 with arc n, as where the 

 line is cut. On line 

 3 4, from peg 3 mea- 

 sure 4 feet 8 inches, in- 

 sert a peg as at point t ; 

 from the peg at *, with 

 the same radius as r s, 

 trace arc u. From the 

 peg in centre o, with the 

 radius o c, trace an arc 

 corresponding to arc n, 

 as traced from m and 

 uniting with arc u, as 

 where the line is cut. 

 From centre o, on lines 

 7 8 and e f, trace arc c, 

 as shown by radius o c ; 

 also from centre o trace 

 arc p, meeting line 7 8. 

 Insert a peg at each 

 point, as at points v and 

 y. From the peg at point 

 v, with radius v w, trace 

 arc w. From the peg at 

 point i/, with the same 

 radius as v w, trace aro x. 

 On line 1 D, from peg 1 

 measure 4 feet 8 inches, 

 insert a peg as at point 

 ft ; from the peg at point 

 ft, with a Btring 3 feet 



8 inches long, trace arc I, as shown by radius ft I. From centre 

 o, on lines 7 8 and e f, with the same radius as o c, trace an arc 

 corresponding to arc n, uniting with arc I, as where the line is 

 cut. On line 7 8, from peg 7 measure 4 feet 8 inches, insert a 

 peg as at point h. With a string 3 feet 8 inches long trace arc i, 

 uniting with arc n traced from point a, as where the line is cut. 

 The three beds on the diameter line a H are now traced, except- 

 ing the side of the middle bed not marked c ; that side is to be 

 traced from centre o, bed b. The three beds on line 5 6 are 

 equal to those on line 7 8, and are traced in the same manner. 



