Dollars 643 



, gross return in 413, 861 



Donax 120, 364 



Dongan charter 1396 



Dopamine (DA) 12, 171, 615, 704, 992, 1413, 1497, 1759, 1760, 1977, 1978, 2134 



content, no appreciable 1759, 2118 



_, higher concentrations converted in pedal than in cerebral or visceral ganglia 



1761 



not actively metabolized in Mereenaria ganglia 1761 

 -rich 1344 

 , synthesis of 171, 1761 



Dopaminergic neurons 1344 

 Dose, influence of 1526 



, maximally effective 704 



_____ response curve 891 



, strength of 262 



Doses, successive equal 349 

 Dowicide A/Dowicide G 4 36 

 Downward trend 582 

 Drakes Estero, Calif. 771 

 Drawings 2154, 2224 

 Dredge, conveyor belt 266 



data, towed 1603 



, Fall River 56, 57, 58, 250, 413, 414, 1603 



, hydraulic escalator 34, 753, 797, 1098, 1541, 1542, 1656, 2143 



, hydraulic suction 993 



, jet 1228, 1842 



, maximum efficiency of 674 



methods/dredge operation 61, 155, 250, 286, 287, 290, 339, 488, 858, 899, 



918 



, power 673, 674, 863, 1672, 1842 



, rocking chair 1584 



, small hydraulic tow 1094 



Dredgeboat owner earnings 862 

 Dredged and undredged portions 1762 



channel 958, 1023 



in winter 1668 



sediment dumping 1605 



Dredges 1303, 1656 



, hydraulic 547, 548, 676, 677, 755, 1303, 1480, 1573, 1781 



, soft clam 41 



, Maryland hydraulic 1312 



, nine 1541 



, seven 1541 



, venturi 687 



Dredging, absence after 1023 

 , continuous 993 



680 



