This section is from the book "The Gardener V1", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
Before proceeding to give a list of these, I think they deserve a few remarks in a cultural sense, although all those who have forced Hyacinths will be intimately acquainted with the mode of early Tulip-culture, in and out of pots. So we shall not direct our remarks to them, but rather to those persons requiring the information.
Some of the early Tulips are not at all stubborn, but are easily forced when not too suddenly and severely pressed by lire-heat. Above every consideration, allow the double-flowers to fill their pots with roots, and become acquainted with glass shelter, before putting into 60° of atmosphere-temperature. Tournesol, both the striped and the self-yellow, are the least shy. Avoid a too sudden transition from cold to heat in the early forcing period - but it is much better to proceed quietly, when one is not pressed for early flowers. It is of the greatest importance to early forcing to get the bulbs home as soon as they are imported, and have those wanted first in bloom potted without a day's delay, and put under the protection of glass, but without applying artificial heat for the succeeding six weeks. Water moderately, after allowing time for the formation of roots; and as soon as the pots are well supplied with roots and the crown started, they may be forced with success. Bottom-heat is not essential, although acceptable when a fair amount of fresh air can be admitted amongst them, and the pots staged near the glass, more especially after the plants have made some advance in growth.
It is a great object to keep the plants as stubby as possible, and this can never be attained when staged at much distance from the glass. Besides these drawbacks to contend with, greenfly sometimes shows its presence uninvited, and, if allowed to stroll at pleasure uninterrupted, will soon make short work with them. A strong dose of tobacco-smoke is the only effectual cure for these pests, and they require strong measures to suffocate them; but the Tulip will not suffer by a strong application of the "weed." Always smoke when the plants are dry in the foliage, and use the syringe freely the succeeding morning. In all else attend to as for Hyacinths.
The following are amongst the best for forcing early. First on the roll is Due van Thol, single, both the old striped, the crimson, the white, and the yellow. !Next the double of the same name. Close in succession follow Tournesol, a splendid full double red, edged with citron-yellow; and Tournesol Yellow, canary yellow, with orange reflex. Rex Rubrorum is a magnificent ruby scarlet, but rather shy to rise so early as closely to succeed Tournesol; still, when coaxed a bit, it makes a good figure and telling effect amongst other spring flowers. La Belle Alliance, single, a beautiful variegated, colour brilliant vermilion red; without flowers, its golden-banded leaves are recommendation enough. Chrysolor is a capital pure single yellow. Potte-bakker, single, white, a charming beauty: so is the striped form, which is golden yellow, variegated crimson. Vermilion Crimson, a single too, unsurpassed. Mariage de ma Fille, double, ground white, flaked cerise, excellent. Duke of York, double, red-edged nankeen. Agnes, double, very large and full, of a brilliant scarlet cast. Cour-onne des Roses, double, rose of glossy silk, texture magnificent. Luther, a double, violet-purple. Imperator Rubrorum, a brilliant scarlet, double.