Quote of the day
It is worth while too to warn the teacher that undue severity in correcting faults is liable at times to discourage a boy's mind from effort.
Mary Walton

Bio: Mary Elizabeth Walton was a nineteenth-century American inventor who was awarded two patents for pollution-reducing devices. In 1879, Walton created a method for reducing the environmental hazards of the smoke emitted from locomotive, industrial and residential chimneys.






