quisite to resort to chalybeates, mineral waters, or other tonics, and especially to the cold bath, where the constitution can support it. The diet of hysteric patients ought to be light and nourishing; they should carefully avoid whatever tends to relax the bowels or debilitate the system. Gentle exercise, and cheerful society, ought by no means to be neglected. Thus, by proper attention, this painful malady may possibly in the course of time be removed; or at least so far palliated, that its attacks will be less frequent and violent.
I. and J.
JACK, a well-known machine for raising timber, or other ponderous bodies.
Although numerous accidents almost daily happen in using the common jacks, for want of a contrivance to prevent the machine from taking a retrograde course, if the weight should, from any circumstance, overbalance the power, no attempts have till lately been made, to protect the workmen on such occasions. In order, therefore, to supply this deficiency in mechanics, as far as our opportunities will admit, we offer the annexed cut to the consideration of those readers who are not yet acquainted with the improvement it represents.
