86 COMMISSIONERS OF INLAND FISHERIES. 



B. Artificial Hatching 107 



C. Hatching and Rearing as Developed by the Rhode Island Commission. 



1. Introduction and General Plan 108 



2. Structure of the Floats 110 



3. Engines and Gearing 1 10 



4. Construction and Care of the Rearing Boxes 112 



5. Construction and Adjustment of the Paddles 114 



6. Obtaining the Egg Lobsters 116 



7. Hatching the Eggs 118 



8. Feeding the Fry 119 



9. Length of Time Required to Reach the Fourth Stage 121 



10. Liberation of the Lobsterlings ; 121 



Liberation of the Fourth Stage along the Shore 122 



Liberation of Fifth and Later Stages 123 



Liberation in Specially Devised Cars 123 



11. Liberation of the Egg Lobsters 124 



12. The Conditions most Essential for the Location of a Rearing Plant. . 125 



13. Cost of a Rearing Plant : 126 



14. Results Obtained 126 



15. Table of Number of Fourth and Fifth Stages Liberated since 1900 . . 127 



