![Useful information for cotton manufacturers . the well-known principles of the wet and dry bulb ther-mometer type of hygrometer, which is recognized the world over as theonly type of standard instrument for Useful information for cotton manufacturers . the well-known principles of the wet and dry bulb ther-mometer type of hygrometer, which is recognized the world over as theonly type of standard instrument for](https://c8.alamy.com/comp/2AX62AK/useful-information-for-cotton-manufacturers-the-well-known-principles-of-the-wet-and-dry-bulb-ther-mometer-type-of-hygrometer-which-is-recognized-the-world-over-as-theonly-type-of-standard-instrument-for-that-purpose-many-attemptshave-been-made-to-devise-instruments-that-would-take-the-place-ofthis-wet-and-dry-bulb-type-of-hygrometer-but-they-have-all-been-igno-minious-failures-they-generally-depending-upon-the-behavior-or-mis-behavior-of-vegetable-or-animal-fibres-or-materials-under-different-at-mospheric-conditions-for-convenience-i-refer-to-this-type-of-hygro-meter-as-the-mechanical-2AX62AK.jpg)
Useful information for cotton manufacturers . the well-known principles of the wet and dry bulb ther-mometer type of hygrometer, which is recognized the world over as theonly type of standard instrument for
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Wet and Dry Bulb Hygrometers Thermometer - China Dry and Wet Thermometer and Wet and Dry Bulb Thermometer
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