Don Mills, Ont. : Southam-MacLean Publications · leaf 258
ermometer records the temperature for everyhour of the day and night upon the charts and the only at- tention it requires is to wind the clock and change the chartsonce a week. It tells you every morning if an even temper-ature and consequent steam pressure has been maintainedthroughout the night… … Fig. 4. Morton Bristol Recording Thermometer. Each thermometer is furnished complete with 100 weeklycharts, padlock, key, bottle of special red ink and dropper,and 25 feet of copper capillary tubing and bulb. The Morton Dry Kiln Company advise that these in-struments have all been thoroughly tested…
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