BDRISBirth Defects Reporting and Information System (Maryland Department of Health and Mental Hygiene)
References in classic literature ?
It was bitter cold, at least sixty-five below zero, and when Kama harnessed the dogs with naked hands he was compelled several times to go over to the fire and warm the numbing finger-tips.
The weather was warm, as well, barely twenty below zero, and the two men, with raised ear-flaps and dangling mittens, sweated as they toiled.
During the next three hours we passed through ten miles of ice, eventually emerging into another series of ammonia-impregnated strata, where the mercury again fell to ten degrees below zero.
Fortunately, when winter snow falls in the Northland the thermometer invariably rises; so, instead of the customary forty and fifty and even sixty degrees below zero, the temperature remained fifteen below.
Sometimes the thermometer would fall to ten or twenty degrees below zero at night, and in the morning the streets would be piled with snowdrifts up to the first-floor windows.
But a cold snap was on, the thermometer registering fifty below zero, and each time he broke through he was compelled for very life to build a fire and dry his garments.
Seventy-four below zero by spirit thermometer on the sled.
I am sorry,' repeated Annette, well below zero, 'if my playing disturbed you.
Though there is no excitement in it, you can easily believe that the sitting still in the buckle with the thermometer perhaps forty degrees below zero is the hardest work an Inuit knows.