INDEX OF AUTHOES 



Apstein, on 



cod eggs in Nordsee Expedition, 311 

 density of plaice and cod in North 



Sea, 311 

 estimation of plankton, 129 

 Nordsee Expedition, 168 

 plankton of Holstein Lakes, 235 

 plankton of North Sea and Baltic, 



159 

 use of Hensen net, 135 



von Baer, on life in Arctic seas, 202 

 Baur, on denitrifying bacteria, 269 

 Baxter, on mussel transplantation, 185 

 Beijerinck, on nitrogen-fixing bacteria, 



267 

 Bidder, on bottom trailers, 16 

 Biebahn, on productivity of land in 



beef, 193 

 Boussingault, on nitrogen compounds 



in river water, 282 

 Bowley, on marriage statistics and birth 



rates, 238 

 Brandt, on 



abundance of diatoms in Kiel Bay 163, 



210 

 carp ponds, 184 

 chemical composition of marine 



animals, 190 

 chemical composition of plankton, 



189 

 circulation of nitrogen, 294 

 denitrification in the sea, 269 

 law of minimum, 236 

 life in tropics, 204 

 nitrogen compounds and density of 



plankton, 235 

 nitrogen compounds in Ehine, 282 

 plankton of Kiel Bay, 205 

 productivity of land and sea, 201 

 silica and diatom abundance, 236 

 Breitfuss, on 



fisheries of Barentz Sea, 247 

 salinit}' of Barentz Sea, 49 



Cleve, on 



European stream, 53 

 plankton types, 151 

 salinity of Gulf Stream, 44 



Coppen Jones, on bacteria, 254 



Darwin, on 



fecundity of marine animals, 91 

 life in seas off Tierra del Fuego, 202 



Dohrn, on food of Pycnogonids, 230 



Dubois, on age of earth, 315 



Ehrenbaum, on 



characters of fish eggs, 310 



fishery statistics, 289 



" Scherbrutnetz," 27 

 Ekman, on salinity of Gulf Stream, 44 



Fischer, A., on 



bacteria and circulation of matter, 

 254 



nutrition of bacteria, 260 

 Fischer, B., on 



marine bacteria, 257 



number of bacteria in Sargasso Sea, 

 260 

 Fischer, E., on composition of proteids, 



262 

 Fisher, Kev. 0., on age of earth, 315 

 Fol, on transparency of sea, 41 

 Forbes, on zones of life, 54 

 Fulton, on 



depletion of sea, 198 



fecundity of fishes, 171 



herring fisheries, 110 



Gamble, on commensalism in Convoluta, 



226 

 Garstang, on 



calendar of plankton, 94 

 depletion of sea, 198 

 Gough, on heliotropism of plankton, 



147 

 Gran, on denitrification in sea, 269 



