Note 28b — Chapter II · PASCAL’S SCIENTIFIC DISCOVERIES.

I owe this information to the kindness of my friend, Professor Tait of Edinburgh. He further informs me that “of late years the calculating machine of M. Scheutz has been employed in the production of many valuable tables almost hopelessly beyond the power of mere mental calculation;” and that a very simple and ingenious machine, known as the Arithmomètre of M. Thomas, is to be found in the office of almost every engineer and actuary.