This is a lecture by Prof. N. J. Beal. We have often remarked that the vice of horticulture is that many of its teachers will talk for an hour rather than experiment five minutes. Prof. Beal is a worthy example of the other side. He talks and endeavors earnestly to spread information through the world, but he also tries experiments, and thus knows of his own labors whereof he talks. We have had many heavy-bound books come to our table that were not half as valuable as this unpretentious pamphlet. It ought to have an extended reading by professional gardeners. We hope to make use of Prof. Beal's facts from time to time for the benefit of our readers.