_Protective and Constructive Laws._--The oyster laws can be divided into two classes: (1) protective; and (2) constructive. The early laws, which were passed to save the natural supply, were of the first class; while the laws establishing the present system of oyster culture come under the second heading. The beginnings of all legislative enactment arose in the treatment of the natural oyster beds. These beds were fast becoming exhausted, when laws were passed to protect their important natural resources. This measure was only partially successful. It did succeed in preserving the remnant of those old beds from destruction, but it was powerless to build up an industry of any extent. When it became clearly evident that no possible fostering of native resources could supply the growing demands of the market, legislation quite logically directed itself toward the artificial propagation of oysters. From this step arose a series of problems which long proved baffling, and still engross a great deal of public attention. The artificial propagation of oysters necessitated the leasing of grants in tidal waters. This giving up of public property to private individuals aroused the opposition of rival shellfish industries, who saw in this measure a curtailment of their resources. Numerous other difficulties of minor significance arose from time to time, all demanding attention at the hands of the Legislature. Apart from the general supervision of the oyster industry, there have been two other sources of legislative enactment. First, special laws have been called for to regulate the fishery in certain waters under the oversight of the State Board of Health. Secondly, during the past few years the attention of the Legislature has been directed towards the development of the oyster fishery as an important asset of the Commonwealth, and laws authorizing various experiments, both scientific and practical, have been passed in order to devise methods of increasing and developing the industry.