The approach of the season for the study of the habits of insects urges me to write a few hints for the guidance of young Canadian beginners. I find that many young persons collect insects more for the sake of recreation and pastime than for the value of the material to aid future investigation. Occasionally one may meet a tyro who can discriminate insect forms, and possess that peculiar acuteness so essential to the study of entomology ; but still he has sad defects, that is, clumsiness in the preparation of his specimens, and want of method. Now, this should be avoided, and the first determination of a young collector who wishes to be successful must be neatness in mounting his specimens, with a zealous regard for the preservation of his cabinet.