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CONTENTdm, along with all of OCLC's services, will be down approximately 15 hours for a system upgrade. This will occur from 9:00pm PST on Friday, January 2, to around noon on Saturday, January 3.


Downing jars set up for use on 'battery' at Put-in Bay station, Ohio. The troughs into which the water flow from the pitcher mouth of the jars serve also to supply the jars in the next tier, by means of the wooden faucets, and there is a small overflow at alternate ends of each trough. This is the common equipment for hatching whitefish and pike perch

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