Transplanting, 87.
machines, 89.

Truck of plow, 95.

Truck soils, 27, 28, 29, 161.

Tubercles on roots of legumes, 68, 144.

Turnip, 6.

Type soils, 26.


Under drains, 237.
advantage of, 237.

Underground stems, 121.


Value of knowledge of flowers, 134.

Vegetables,
roots, 13, 14, 15.
soil for, 28.

Ventilation of soils, 68, 142.
necessary for germination, 73.
necessary for root growth, 21, 22, 23.
necessary for fixation of nitrogen, 144.