=Photographing Live Fishes.=--A number of methods are mentioned by Dr. R. W. Schufeldt, in a paper on the subject, by which fishes may be photographed in their natural element, with natural surroundings. This can be done, even under the surface of the water, by the use of certain subaquatic apparatus. By the employment of instantaneous photography some fishes have been taken in the air, as of salmon in the act of leaping, or of flying fish in flight. Such pictures, however, illustrate special habits rather than the ordinary life of the subjects. Well-arranged aquariums afford opportunities for photographing fishes in almost every condition and position, and a command of light and situation can be had in them which is of great advantage to the operator. The specimens of fish photographs published by the author with his paper are in every way satisfactory. The spots on the sunfish, for example, are almost as clear and distinct as if we had the fish lying before us in the broad light. The photograph of the pike has afforded opportunity to correct some inaccuracies in the drawing of it as given in previous works of high authority. * * * * * =Marine Life at Cold Spring Harbor, Long Island.=--Mr. Francis N. Beach, in presenting to the Boston Society of Natural History a list of the Marine Mollusca of Cold Spring Harbor, Long Island, speaks of the locality as representing “a fairly distinct facies of molluscan life--the fauna of the oyster beds, broadly speaking. From this point of view, its homogeneity and the absence of stragglers lend it value. Probably almost every species enumerated lives on the spot where found or in the immediate vicinity. This characteristic makes the spot a good sample of actual conditions of life in that interesting transitional region where the ‘Virginian’ and ‘Acadian’ (or ‘Boreal’) faunas overlap. From this point of view it is, so far from being homogeneous, strikingly heterogeneous.” Of the two faunas, the southern one contributes a quota rather more than twice that of the more northern one, and the increase in the preponderance of southern forms can be detected in a range of forty miles. The author concludes from his examination that, notwithstanding the well-marked character of Cold Spring Harbor as “muddy,” its molluscan fauna is determined not at all by that character, but predominantly by the depth of water and by the factors included in the “inclosedness” of the place--that is, he supposes, by the temperature, the specific gravity, the percentage of organic matter, etc. “It looks as though the various species would manage somehow to be represented on almost any stretch of shore or bottom, provided only the _water conditions_ be right.” * * * * *