150 University of Califorma Publications in Zoology [ Vou. 14 
APPENDIX II 
‘“ALBATROSS’’ HYDROGRAPHIC STATIONS IN AND NEAR SAN 
FRANCISCO BAY, 1912-1913 
The great majority of the stations here listed belong to a regular 
series, twenty-three in number, which were visited at intervals of 
approximately two months, during both the flood and ebb tides. In 
the subjoined table those stations which are not referred to any other 
stations for their position represent the earliest observations of the 
regular series. These numbers may be found directly by reference to 
the charts (plates 3 and 4) indicating the hydrographic stations. The 
later visits to approximately the same positions were treated in the 
ship’s records as independent stations, and given new numbers. In 
order that these stations may be readily identified with those of the 
original series having corresponding positions, the earlier number has, 
in each case, been given in the third column of this table. <A list of 
hydrographie stations having approximately the same positions is 
likewise given below. 
The bearings of all of the hydrographic stations are indicated in 
the present table. In a few cases, these furnish the only clew to the 
position of a station, since a number of hydrographic stations do not 
belong to the regular series above referred to. In most cases, however, 
such stations occupy the same position as certain of the dredgmg sta- 
tions. Thus, when one of the latter numbers occurs in the third column 
of the table, the position of the hydrographic station in question must 
be found by reference to one of the two charts giving the dredging 
stations. 
Finally, during considerable periods, covering parts of two years, 
tow-net hauls were made at weekly intervals in waters within a mile 
or two of the ship’s anchorage. These hauls were not treated as regular 
hydrographic stations, and no numbers were assigned to them, but 
they are none the less listed at the end of the present table. 
Except where the contrary is specified, the apparatus used at the 
hydrographic stations consisted of surface and bottom thermometers, 
the Ekman reversing water-bottle (bearing the bottom thermometers ) 
and three tow-nets: one having a 48-inch hoop and made of no. 000 
silk, and two having 14-inch hoops and made of no. 12 and no. 20 silk 
respectively. 
