Why does a thermometer wrapped in tissue dipped in to ether then removed fall in temperature then rise?

When a thermometer wrapped in tissue and dipped in ether is removed, the initial drop in temperature occurs due to the evaporation of ether, which absorbs heat from the thermometer and the surrounding tissue. This endothermic process cools the thermometer. As the ether continues to evaporate, the temperature of the thermometer gradually rises again due to the heat exchange with the environment, allowing it to stabilize at a higher temperature than its initial reading.