The present number of the Journal contains several memoirs of considerable practical importance. Mr. Bateson's paper on The Sense-organs of Fishes is the outcome of six months' work at Plymouth. It will be seen that he has dealt with the subject in the broadest possible manner; and whilst he is able to offer many practical suggestions as to the course to be pursued in further experiments with preserved and artificial baits, he has prepared the way for such experiments by his careful and interesting observations on the manner in which various fishes hunt for their prey. These observations give a far more accurate and well-founded account of the habits of food-fishes than anything that has been published before.