Prof. C. V. Riley has just returned from California, where he has been studying the orange scale insects. He found the injury reported to be by no means underrated, and some orange orchards were being abandoned on account of the scale. It would be easy to get rid of the insect if it kept to the branches, but it covers the young fruit, rendering it small and inferior, even if the insects are scrubbed off before marketing the fruit. He says the phylloxera for the grape, and the phylloxera for the apple, have invaded California at last, but the curculio for the plum and apricot have not yet found California out. As California has become in a measure the rival of Florida in citrus productions, the Professor has been asked which country is best on the whole for these plants. He says he finds one has an advantage, and something else in the other, that he thinks advantages balanced.