. The American florist : a weekly journal for the trade. Floriculture; Florists. IQIO. The American Florist. 1253 Protect Yourself From all possibility of loss owing to fluctuations in temperature in the greenhouse. Keep the heat steady and the plants will Metallic Thermometer "A" 8 inches high; 4 inches wide; 2 inches deep. Case made of cast aluminum; highly finished. By the use of this alarm any variation of tempera- ture above or below an adjustable normal will be signalled on gongs of different tones placed in the boiler room or wherever desired. The indicator shows the
. The American florist : a weekly journal for the trade. Floriculture; Florists. IQIO. The American Florist. 1253 Protect Yourself From all possibility of loss owing to fluctuations in temperature in the greenhouse. Keep the heat steady and the plants will Metallic Thermometer "A" 8 inches high; 4 inches wide; 2 inches deep. Case made of cast aluminum; highly finished. By the use of this alarm any variation of tempera- ture above or below an adjustable normal will be signalled on gongs of different tones placed in the boiler room or wherever desired. The indicator shows the actual temperature at all times. It is invaluable in greenhouses where it is desired to uiaintain a regular temperature, anywhere between 30° and 120°. For higher temperatures the type B is supplied. Too much heat is harmful as is too little and we absolutely guarantee the perfect accuracy of this alarm. It will do exactly as we say. It contains no complicated mechanism so will not get out of order while it is constructed of the best material available. This device has been subjected to the severest tests in our laboratory for over two years while, during this time, it has been in use by many in the trade and has given the greatest satisfaction. Set the pointers at the highest and lowest tempera- tures that are safe in the house and the bell will ring immediately the maximum or minimum is reached not after the temperature has dropped or risen to an injuri- ous degree. Investigate it today and save all worry. You can then sleep at night confident that j'our plants are safe. The "NATIONAL" Differential Temperature Alarm Size 4 inches in diameter 1' . inches deep casing made of sheet aluminum. The cut herewith shows our "UifTcrential Tempera- ture ; It operates within 20° and 110° a1)0ve zero Fahrenheit, combining the features of our Temperature Alarm No. 1 (hot) and No. 2 (cold) in one instrument. Every thinking florist will at once appreciate what a
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
