40 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 1 



heater. The salt-water sanitary system and salt water for showers are also 

 circulated by automatic pump and pressure tank. In case of a breakdown 

 of the engine pumps, an auxiliary system with a 250-gallon centrifugal 

 pump may be placed in use. Purifiers are used for fuel oil and for lubri- 

 cating oil. 



The ship is artificially ventilated. Separate systems are used for all the 

 staterooms and other watertight compartments to avoid the necessity of 

 puncturing the watertight bulkheads. Fresh air is supplied to each state- 

 room. The galley and the pantry have the air exhausted rapidly enough to 

 have a complete change every three minutes. All toilets have the air ex- 

 hausted. 



There are four watertight bulkheads between all compartments below 

 the boat deck. Watertight bulkhead doors are manually operated, with 

 indicator in the pilothouse showing whether they are open or closed. All 

 outside doors are watertight; all openings through the lower deck are 

 closed by watertight hatches. All air and light openings, with the excep- 

 tion of the skylights and those in the pilothouse front are heavy, bronze- 

 framed portlights with extra thick glass. 



There is a telephone system with telephones in the Captain's room, 

 the dining saloon, the recreation room, the pantry, one stateroom in the 

 fo'c's'le head, the owner's room, the engine room, and the Chief Engi- 

 neer's room. All wiring is in conduits or flexible U.S. Navy marine cable. 

 There is a general alarm system, having fire stations, controlled from the 

 bridge. A navy standard blinker light is installed on top of the foremast, 

 with key box arranged for portable operation from the bridge. 



The auxiliary 7%-kilowatt, gasoline-driven generator on the engine 

 room main deck level is a special safety fixture, as it can be put into use to 

 supply light or radio power even if the engine room is flooded. 



Extra equipment for scientific work. Besides such regular equipment 

 as nets, seines, townets, dipnets, diving helmet, harpoons, and fishing 

 tackle, there are available two sizes of dredge, a beam trawl, a sounding 

 machine (as well as the fathometer in the pilothouse), 6 reversing water 

 bottles, 12 deep-sea thermometers, several types of bottom samplers, and 

 bottom "core" apparatus. 



The larger dredge (at least one extra always kept on the forward 

 deck ready for use) is handled from the forward deck of the Velero III 

 with a winch and cargo boom. The %-inch steel cable from the dredge 

 passes through a sheave, near the stem head, through a metal guide, and 

 then through a second guide, by which the lateral position can be con- 



