Chart X.— Comparison of the effect of mutilation and tlie effect of mutilation plus regeneration, upon the length of the molting period in fourth stage lobsters. 



Series C« Series C, Series C, 



468 10 2468 10 2 4 



2 4 6 8 



6 8 10 2 4 6 8 10 



Series Oi, Series c'l^ Series Cu 



8 10 24 68 10 24 68 10 2468 



h 



Normal average for series B. 



