. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. ^s^^mammft^-'âr' 'â PLATE NO. 2. INTERIOR OF HYTHERGRAPH The hythergraph is accessible from both the temperature and humidity sides: tlie illustration shows the main working parts disclosed from the humlditj^-recording- side. 1. Temperature element in the form of a bi-metallic strip. 2. Relative humidity element as strand of human hair. â 3. Record tension spring. 4. Hygrograph recording pen dotting every minute for a second's duration. 5. Pen-lifting device, operating both temperature and hum
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. ^s^^mammft^-'âr' 'â PLATE NO. 2. INTERIOR OF HYTHERGRAPH The hythergraph is accessible from both the temperature and humidity sides: tlie illustration shows the main working parts disclosed from the humlditj^-recording- side. 1. Temperature element in the form of a bi-metallic strip. 2. Relative humidity element as strand of human hair. â 3. Record tension spring. 4. Hygrograph recording pen dotting every minute for a second's duration. 5. Pen-lifting device, operating both temperature and humidity pens. 6. Lever to lift both pens when changing record sheets, PLATE XO. :j. OPPOSITE (Temperature) SIDE OF HYTHERGRAPH 1. Gear shifting device: the indicator in its present position shows that the hythergraph will make a daily hour record. By sliding the lever down one notch the hythergraph will make a weekly record. 2. Clock escapement: the movement is inclosed in a strong case. 3. Winding Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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