The following article we copy from the American Journal of Science and Arts for May. It formed part of Professor Beale's lecture given last Winter before the farmers' institutes. With reference to it, Prof. A. Gray, of Harvard University, writes that "the experiments are very neat and to the purpose," and then he gives the article the place of honor in the journal of which he is one of the associate editors.

"Early in the Spring of 1877, the writer received the first review of Darwin's book on ' The effects of cross self-fertilization of plants.' The book seemed to be a most instructive production, one which has not been excelled in importance to the farmer by any work in this or in any age. But, in the words of the Gardeners' Chronicle, it is certain that these practical results will be a long time filtering into the minds of those who will eventually profit most by them.' If the results are so valuable, and if it will take a long time to reach the farmers, this 'filtering' process cannot begin too soon, nor be too continuously kept before them. The writer lost no time in trying similar experiments on several of our cultivated plants, as apples, onions, Indian corn, and beans.