Manometric methods 2138 



Mantle/mantle cavity 85, 101, 102, 147, 159, 161, 232, 263, 337, 460, 534 543 



629, 745, 769, 824, 840, 841, 843, 844, 845, 847, 848, 849, 851, 852, 853! 



1373, 1413, 1451, 1471, 1478, 1759, 2140, 2154 



cavity fluid 520, 522, 524, 609, 917 



, removal of debris from 841 



, seals 101 



cells 2211, 2212 



, damage to 402 



, leakage from 402 



, center of 524 



edge 85, 534, 609, 764, 841, 846, 851, 1984 



edges fused 278, 281, 1352 



, of 152 



white 899 



epithelial cells 602, 2106, 2124 



epithelium 160 



fluid 372, 2064 



fold, outer 1373 

 _, folds of 84 

 _, fourth fold of 843, 852, 853, 854 



fusion, extensive 1022 



increases in oxygen consumption 1555 

 _, inner margin of 159 

 _, isolated 2062, 2064 



lactic dehydrogenase 545 

 _, living 524 

 _, localized in shell-forming area of 845 



margin 841, 844 



, folding-over of inner surface of 854 



, inner surface of and inner surface of third fold 854 



margins, apposition of 101 



to outside, exuded between 842 



muscles 772 

 _, outer epithelium of 1375 

 _, periphery of 159 

 _, protein excretion 2063, 2064 

 _, second fold of 846, 847 

 _-shell interface 403 

 _- preparation 9 32 



tissue gains C0 2 , only 522 



tissues 160, 161, 544, 743, 869, 871, 872, 924, 1515 



without edge 609 



Manual 1490 



of operations 876 



Maquoit Bay, Me. 488, 507, 631, 1917 



Marazion, England 1696 



Marchwood, England 89, 91, 92 



737 



