CONTENTS. vii 



Law enforcement Concluded. 



Report of chief deputy Concluded. PAGE 



Federal wardens, ..... .62 



Confiscated guns, .... .63 



Recommendations, ... .64 



Fish distribution, .... . .64 



Exhibitions, .... . .64 



Power boat, .... 64 



Automobile, ..... .65 



Unpaid deputies and town wardens, ..... 65 



Deputy equipment, .... . .66 



Legislation, ......... 66 



Marine fisheries, ........... 67 



Deep-sea fisheries, ..... .... 67 



Mackerel, ...... ... 67 



Ground fish, . ... .69 



Boston fish market, ...... .71 



Eat fish, .... .71 



Fish receipts, Boston, 1916, ... .72 



Gloucester fish market, ..... .73 



New crafts, ... .73 



Vessels sold from Gloucester, ... .75 



Fish receipts for Gloucester, ... . .76 



The poor "dog," . . 77 



Lobster fishery, ...... . .78 



Shellfish, . . .78 



Biological investigations, ..... .80 



General report of Biologist, ........ 80 



Introduction, .......... 80 



Laboratory, ..... 80 



Assistants, ....... 80 



Pathological examinations, ... .80 



Information bureau, ..... . .81 



Special investigations, ...... .81 



Educational work, . . . . . . . . . . 81 



Reports of investigations, .... . .81 



Bird diseases, ........ .82 



Inland waters, .......... 82 



Buzzards bay fisheries, .... ... 83 



The alewife fisheries of Massachusetts, ... .83 



Introduction, .......... 83 



Importance, ...... 83 



Results of investigation, ........ 84 



Methods of investigation, .... .84 



Natural history, .... ... 84 



Present conditions, . ... 85 



Decline, ........... 85 



Natural changes, ......... 85 



Obstructions, . ........ 85 



Dams, .......... 86 



Cranberry bogs, ......... 86 



Water supplies, ......... 86 



Pollution, . . 86 



Overfishing, ........ .86 



Restoration, . ..... 86 



