THE MOUNT DESERT REGION 45 



EQUIPMENT 



For the purpose of carrying on this work and further- 

 ing research in marine biology in this locality, I built a labora- 

 tory on my property 'Corfield' in Bar Harbor, with an ade- 

 quate dock and other facilities. Inasmuch as there are but 

 few marine biological laboratories in the United States, I 

 think it well to devote a few words to a simple description of 

 the laboratory, water system, boat, and equipment, so that 

 anyone wishing to pursue this line of work in shallow waters 

 may have the information at hand. All of the information on 

 boats, dredging, and the like, refers to deep-sea work with 

 large boats, wire rope, and heavy equipment; so when this 

 work was contemplated I was obliged to design and lay out 

 equipment that would suit our needs and could be handled 

 by hand. The only thing one could be sure of was to copy the 

 form of dredge that has been used since the time of Muller. 



Inasmuch as we could feel the dredge by hand and circle 

 around and loosen it when caught, I had some teeth riveted 

 on to one of the edges as shown in figure 17, for use on soft 

 bottoms. This dredge proved most satisfactory and I heartily 

 recommend it to anyone working under conditions similar to 

 ours. 



The 'Lophius' is of 16 tons burthen, slightly over 55 feet in 

 length with a 12-foot beam, and draws 3 feet 4 inches. Her 

 lines were designed to bring about a quick recovery and with- 

 stand rough weather. This matter of recovery is a most im- 

 portant one, for it not only affects work on the boat and facili- 

 tates sorting of material, but it also keeps the dredge from 

 jumping over the bottom and permits it to drag more evenly. 



The boat is powered with a Sterling Chevron engine which 

 gives her a cruising speed of 11 knots with considerable over 

 if needed, while at the same time it can be throttled down to a 

 very slow speed in order to dredge slowly when tide or wind 

 were not sufficient to move the boat against drag of the 

 dredge. The engine is set low in order to bring the weight 

 where it should be and is covered by an engine house bolted 

 to the deck so that it may be lifted ot¥ entirely and the engine 

 removed for repairs if necessary. 



