Radiochemical analysis 1864 



Radioisotopes 188, 343 



Radiometric dates 806 



Radionuclides 97, 178, 1167, 1197 



, accumulation of 201, 1167, 1500, 1501, 1502, 1503, 1504 



, retention of 1502 



Radium-228 chronology 1837 



Radula 358, 374, 782 



Raft culturing 376, 1646 



, floating from a 1328 



Rafts 268 



Rahway River, N. J. 1755 



Rainfall 15, 99, 140, 910 



, high 281, 801 



, little 281 



Rains, heavy 1787, 2047 



Rake (see also harvesting) 108, 155, 286, 287, 337, 339, 548, 679, 681, 716, 

 899, 1181, 1303, 1335, 1552, 1656, 1568, 1672 



, maximum efficiency of 6 74 



Rakers, hand 862 



Rakes, hand 416, 6 74 



, long-handled 918 



, short 918 



Raking, hand, vs power dredging 6 74 



Ramification, cytoplasmic 602 



Sana 2050 



Rands Harbor, Mass. 211 



Range/range extension 20, 506, 1302 



, natural continuous 638 



, northern limit of 89, 96, 104, 493, 497 



northward, potentiality to extend 1779 



of algal cell concentrations 557, 1144 



_____ concentration in ganglia 1759 



vessel earnings 863 



water temperatures 440, 443 



Ranges, extreme southern 423 



Bangia 676, 679, 727 



Rappahannock River, Va. 1179 



Rare and local 899 



Raritan Bay, N. Y. and N. J. 46, 244, 245, 409, 458, 462, 467, 484, 567, 573, 

 790, 792, 794, 886, 899, 910, 920, 970, 1003, 1004, 1206, 1207, 1214, 1310, 1390, 

 1447, 1448, 1522, 1715, 1858, 1871, 1872, 1913, 1921, 1922, 1994, 2074, 2149 



_ channel, N. J. 794 



River estuary, N.J. 459 



Rasping 27 3 



Rat cerebral cortex 1964 



liver 543 



lungworm, metastrongylid 326 



785 



