Synchronical Times are validly observed for the performance of gardening operations. More than one botanist has observed that if the time of the foliation and blossoming of trees and herbs, and the days on which the seed is sown, flowers, and ripens, were noted, and if the observer continued these observations for many years, there can be no doubt but that we might find some rule from which we might conclude at what time grains and culinary plants, according to the nature of each soil, ought to be sown; nor should we be at a loss to guess at the approach of winter; nor ignorant whether we ought to make our autumn sowing later or earlier.

M. Barck would derive his intimations from the vegetable tribes alone, but, I think, the other kingdoms of organic nature might be included; as the appearances of certain migratory birds, and the birth of certain insects. For example, in the east of England, it is a common saying among gardeners, confirmed by practice - "When you have seen two swallows together, sow kidney beans".

Mr. Stillingfleet, one of the most careful of Nature's observers, says, that in his time "the prudent gardener never ventured to put his house-plants out until the mulberry leaf was of a certain growth." - Gard. Alm.