During the past three years, as outlined by chapter 78, Resolves of 1905, the Fish and Game Commission has conducted a series of experiments upon the quahaug, designated to furnish sufficient data concerning the growth of this mollusk under a variety of conditions, to demonstrate the possibilities and value of practical quahaug farming. The results of these investigations upon the life, habits and culture of the quahaug are to be published in a later scientific report. It is necessary here to say that all statements in this report concerning the growth and culture of quahaugs have been proved by experiments, the results of which are on file at the office of the department of fisheries and game. It is the object of this report to present both to the fishermen and consumers (1) actual statistical figures of the industry of the State for 1907; (2) a biological survey of the quahauging areas, outlined by maps and descriptions; (3) a description of the industry. This survey should furnish a basis for determining any decline or advance in the quahaug industry of the future, as well as affording comparison with the United States Fish Commission survey of 1879, made by Ernest Ingersoll. Massachusetts, situated at the northern limit of the quahaug industry of the United States, is handicapped in comparison with other States, as only the southern waters of the State are given to this industry. Nevertheless, though possessing only a partial industry, Massachusetts ranks the fourth State in quahaug production, according to the 1906 report of the United States Fish Commission. The same natural conditions which suit so well the shallow-water scallop are also adapted to the growth of the quahaug. In nearly all the sheltered bays, inlets and rivers of the southern coast of Massachusetts the quahaug can be found in varying abundance. Technically, there is more territory which admits the possibility of quahaug growth than of any other shellfish. The bathymetric range of the quahaug is extensive, as the quahaug is raked in all depths of water up to 50 feet. In spite of the vast territory nature has provided for the quahaug in the waters of Massachusetts, the commercial fishery is found only in small parts of this large area. Scattered quahaugs are found over the rest of the area, but in paying quantities only in limited places. The possibilities of developing this great natural tract of quahaug ground are especially alluring,--far more so than any of the other shellfisheries. The quahaug has a greater area, greater possible expansion and a more profitable market. Nature has equipped southern Massachusetts with numerous bays with remarkable facilities for the production of quahaugs; it only remains for man to make the most of these.