Monthly Horticultural Calendar. 479 
The Wryneck, Yi'tnx torqii'illa, an elegant bird, which may be known by its cry, resemblinff 
that of a Woodpecker; arrives in the first fortnight, a few'dciys before the Cuckoo, Ciiculus 
canJrus ; this circumstance is so well known as to have obtained for it tlie names of Cuckoo's 
Provider, Cuckoo's Servant, and Cuckoo's U'ailing-Maid. 
The Lesser AVhite-throat, Sylvia st/lviflla, (Curruca frarrula,) arrives about tlie third week, 
and the White-throat, .'sy/ffa ci'n'rM, (Currfica cin^rea.) a few days afterwards. The Yellow 
Wren, or Hay Bird, ;S'y/t>(a TriV/HYi/i; the Whinchat, ,s'y/iia rui^^ra, (Saxicola rub^tra;) and 
the Blackcap, S. atricdpillu, arrive about the same time. 
The Sedge Warbler, Sylvia salicnria, (Currfica salicaria,) tisits us about the last week, and 
takes up its abode in the willows, by the water-side, and in a few days commences its imitative 
song, which it continues with short intermissions through the niu;ht. It may here be remarked 
that all the migratory Warblers continue silent for some days after their arrival, so that the 
precise time of their coming is not always easy to ascertain. 
The Redstart, Sylvia phccnicvrus, is occasionally found at the end of the moiitli. 
The Nightingale, Sylvia luscinia, commences its song in the last week. 
Tlie Sand piper, Tringa hypoleiicot , (Totaiiushypoleucos;) the Turtle Dove, Colnmba Tiirlur; 
the Quail, Perdix Cotnrnix, (Coturnix major ;) and the Ruff, Tringaptignax, visit us towards 
the latter end of the month. 
The Fieldfare, I'lirdus pilaris, and a few other winter birds of passage, now leave us. 
METEOROLOGY. 
Barometer.— Mean Height 29,881. Highest 30,540. Lowest 29,200 inches. 
Thermometer- — Mean Temperature 49,9 degrees. Highest 74. Lowest 29 degrees. 
Rain. — Mean quantity J, 786 inches. 
Evaporation.— Mean quantity 2,290 inches. 
Duffield Bank, March, \8'i2. O. Jbwitt. 
VIT.— MONTHLY HORTICULTURAL CALENDAR, 
FOR APRIL. 
The chief business of April, consists in finisbing off the sowing and planting, many of the 
principal crops ; — for this purpose, all the ground yet unprepared, must be got in order as early 
111 the month as possible, by digging, dunging, trenching, and otherways making it ready for 
sowing and planting. If any pruning or nailing remains unfinished, it must immediately be 
brought to a conclusion. Green-house plants must now have more air admitted than heretofore, 
and also occasionally have a little water sprinkled over the leaves, either with the rose of a wa- 
tering-pot, a syriuge, or a garden engine. Tn the stove, if all the succession pine plants are not 
already shifted, the sooner they are done, the better. Replenish the bark-beds, as directed for 
last month. Cucumbers and Melons will now be showing fruit ; give plenty of air, and keep 
up a brisk beat in the beds ; give the roots plenty of water, and occasionallyin a morning, 
sprinkle a little water over the leaves. 
FRUIT DEPARTMENT. 
Protect IT'ull Trees in Blossom. See Calendar for March. 
Grafting, may still be performed ; but it should be done as early in the month as possible. 
Jpricot Trees will require examining as soon as the leaves appear; and when the foliage is 
curled, or if webs are seen, caterpillars are secreted in the buds, open the leaves and destroy 
the grubs, or they will become very troublesome, 
Mulch newly-planted Trees, with some half-rotted dung, to keep the sun and drying winds, 
from affecting the root*. 
Peach Houses, should be well steamed every day, and the trees syringed ; as recommended last 
month. The fruit on those trees started in December, will now be nearly over stoning, — 
give abundance of air, and keep the temperature much the same as lecomraended last 
month.— See pages 287, 3.30, 383, and 431. 
Cherry Houses. The trees started in January, will now about have set their fruit ; — syringe 
the trees well, as recommended last month, and keep the thermometer from 60 to 65 deg. 
by day, and from 55 to 60 by night. — See Calendar for March. 
Vineries — See last mouth. Vines in pots, — see page 6 and 185. For growing on the rafters, in 
frames, &c.— pages 193, 309, 337 to 347, and 399. To remedy the blotching of the berries, 
see page 280. 
Fig Trees. Both in houses, and on the open wall, see page 385. 
Pine Stoves. See page 364. 
FLOWER DEPARTMENT. 
Dahlia Roots, should now be potted, (if not done before) or plunged in a little old tan in the 
stove or a frame, to forward them for planting out. — See page 145 to 147. 
Mignonette and Ten-week Stocks, sown in February, must be exposed as much as possible, shel . 
tering them only from severe frost or heavy rain. 
Juriculas, will now be in flower. — For their treatment, see page 56. 
Polyanthuses, will also be flower.— See page 448. 
Banuncvluses, planted last month, will be up by the middle of this; select a fine day to press 
the loose soil to the roots,— as recommended page 108. 
