Show small army of unpaid observers of weather thousands of men and women ad as unpaid operative cooperative co observers verg 0 the united states weather bureau thanks to the services of these per sons dally weather records are main talked at nearly places la thu country and in many cases the ree have been apt v ath hardly i break for GO years or more by u observer or by members 0 the same family these records ar sent monthly to washington MI sen e as alie raw material from waldi climatic statistics are prepared tor all of the country the bureal supplies to each a raaf gauge a maximum thermometer for registering the 0 the day a minimum ter which registers the lowest an a wooden thermometer and or shelter the observer reads ahli instruments once a day usually about sunset ant enters the readings in his register together with 1 record of various special weather events such as frosts thunderstorms tornadoes auroras and opt cal phenomena |