parsnip, turnip, lettuce, etc. With Indian corn all that class which actual freezing will destroy, including all the dwarf beans. With the squash may be included all the more tender plants, in cluding lima and other running beans, tomatoes, egg plants, etc. Among the cereal grains oats, perhaps, should be excepted. Oats should rather be placed with the pea, and with this, or rather between this class, and Indian corn, all the half hardy plants, as flax, Hungarian grass, celery, beets, onions, etc. Potatoes are susceptible to frost. They require about the same temperature for germination as Indian corn, but they may be planted very early in the season, since until the ground gels warm, germination goes on so slow that they do not appear above ground until all danger of frost is generally over, and if the soil be not with water they will not decay. Su, also, the seeds of any grain if sown early, and not exposed to become water-soaked in the soil, they will germinate when the proper tem perature is reached, and growing, will be more hardy than when they sprout more quickly after being sown Thus ILIstrlandt found that with a temperature of forty-one degrees, rye formed rootlets in four days, the other cereals and clover in from rive to seven days, and at fifty one degrees the time was shortened one half. At this latter
temperature kidney beans required eight, Indian corn eleven, and tobacco thirty-one days to com mence active germination. At sixty-five degrees the eel grains, clover, flax, and peas, begin to sprout in one or IWO days; beans, corn, and hstet s in three days, nail tobacco in six days. (Sec articles Heat, Light, Electricity, Germina tion, etc.
o EMPERAT FRE OF ANIMALS. The an imal heat (of the body) in health is ninety-eight degrees, and deviation from this heat, even to that of a few degrees, shows good ground for supposing that there is disability present. If the temperature sinks we have a chill, and if it rises we have fever. Thus, an alternate sinking and rising of the temperature gives chills t.nd fever.