SCO 



scu 



deep drills, twelve inches asunder. 

 Thin the plants to ten inches distance; 

 they will grow freely, and their roots i 

 continue increasing in size till Septem- 

 ber. The roots may either remain in 

 the ground, to be drawn as wanted, or 

 taken wholly up in autumn when their 

 leaves decay, and preserved in sand all 

 winter. To save Seed. Let some of the 

 plants remain where sown, when they 

 will shoot up in the spring, and produce 

 plenty of seed in autumn. 



SCOTCH ASPHODEL. Tofie'ldiaalpi'na. 



SCOTCH KALE. Bra'ssica olera'cea. 



SCOTCH LABURNUM. Cy'tisus alpi'- 

 n us. 



SCO'TTIA. (Named after Dr. Scott, 

 once professor of botany in Dublin. 

 Nat. ord., Leguminous Plants [Faba- 

 cese]. Linn., \Q-Monadelphia ti-Decan- 

 dria.) 



Greenhouse evergreen shrubs, from New Hol- 

 land. Cuttings of shoots, when getting a little 

 firm at the base ; sandy fibry loam, one part, 

 and two parts of sandy fibry peat, with a little 

 charcoal. Winter temp., 40 to 48. 

 S. angustifo'lia (narrow - leaved) . 6. Green, 

 yellow. April. 1825. 



denta'tu (tooth - leaved) . 3. Ked, green. 



July. 1803. 



Ice' vis (smooth-branched). 3. Yellow, scar- 



let. June. 1833. 



trapexifo'rmis (trapezium-teamed). January, j 



1825. 



SCREEN. All cooling is occasioned j 

 either by the heat being conducted j 

 from a body by a colder, which is in ' 

 contact with it, or by radiating from the j 

 body cooled, though circumstances 

 accelerate or retard the radiation ; and i 

 whatever checks the radiation of heat ; 

 from a body is a screen, and keeps it 

 warmer. For screening or protecting 

 the blossom of wall-fruit, Mr. Errington I 

 states : We do not know that any mate- j 

 rial is more proper for covering than , 

 thin canvass, such as is manufactured ,. 

 by Mr. Nathaniel Hulme, of Paradise- ! 

 green, Knutsford, which he sells at j 

 about fivepence per square yard. He 

 generally makes it in widths of three 

 yards, which is enough for most walls, 

 so that every lineal yard costs fifteen- 

 pence ; but then this canvass will last 

 well for seven years, if properly pre- 

 served, and a due care be exercised. 

 Thus it will be seen, that the annual 

 expense of protecting a lineal yard of 



walling is not more than twopenco- 

 halfpenny, exclusive of a few ordinary 

 poles. We place a pole every six feet, 

 running under the coping at top, and 

 straddling away nearly two feet at 

 bottom. At two feet above the ground 

 level an auger hole is bored in the 

 pole, and an oaken peg driven in, the 

 end left projecting nine inches forward ; 

 and when the canvass is lowered in the 

 day, it hangs in folds on this line of 

 pegs this keeps it from contact with 

 the damp soil. Every pole has a ring 

 dangling from a staple close to the top ; 

 and on the outer face a rope of sash- 

 cording is attached to the edge of the 

 canvass opposite each ring ; this being 

 passed through the ring from the under 

 side, enables the operator to pull it up, 

 or let it down, with ease. Thus, when 

 the canvass is lowered the wall is un- 

 covered, and vice versa. Now, these 

 rings and cords will add to the expense ; 

 and, since both are very durable, we 

 may, perhaps, add another halfpenny 

 per lineal yard to the amount, account- 

 ing the ropes to last nearly as long as 

 the canvass. A still more complete 

 plan is to hang the canvass like cur- 

 tains, or after the manner of the cover- 

 ing to what are termed conservative 

 walls. 



For wall-trees, now that glass is be- 

 come so much cheaper, the best of all 

 screens may be employed, viz., glazed 

 frames, of a length extending from the 

 coping of the wall to the surface of the 

 soil, about two feet from the stems of 

 the trees. See Glass Case. 



SCREW PINE. Panda'nus. 



SCREW TREE. Heli'cteres. 



SCRUBBY OAK. Lophi'ra Africa'na. 



SCURVY GRASS, CocMca'ria officina'lis, 

 flourishes most in a sandy moist soil. 

 Sow as soon as the seeds are ripe in 

 June or July, in drills, eight inches 

 apart, and half-an-inch deep. Thin to 

 eight inches asunder, and those re- 

 moved may be transplanted to a bed at 

 similar distances ; giving water at the 

 time, and frequently afterwards, until 

 fully established. The leaves are fit 

 to gather during the following spring. 



To obtain Seed. A few plants must 

 be left ungathered from in the spring. 

 They will nm up to flower about May, 



