Hotbeds

The American gardener: or, A treatise on the situation, soil, fencing and laying-out of gardens; on the making and managing of hot-beds and green-houses; and on the propagation and cultivation of the several sorts of vegetables, herbs, fruits and flowers

By William Cobbett ...

Mini-hotbed and propagating frame

[Agricultural Engineering Research Division, Agricultural Research Service]

Electric heating of hotbeds

[by James M. Stanley]

Electric heat for propagating and growing plants

B.D. Moses and James R. Tavernetti

How to make and use hotbeds and cold frames

by W.T. Macoun.

How to make and use hotbeds and cold frames

by W.T. Macoun

How to make and use a hotbed and cold frame

by W.T. Macoun.

Hot beds and cold frames

United States. Department of Agriculture. Radio Service

The use of the hot-bed in vegetable gardening

by A.G. Bouquet.

Hotbeds and coldframes for the home garden

by Arthur G.B. Bouquet.