With increase in depth, however, the thickness and weight of the cast iron tubbing in a large shaft become almost unmanageable; in one instance, at a depth of 1215 f t., the bottom rings in a shaft 142 ft.
This apparatus was, however, very heavy and became unmanageable when more than an hour's supply was required.
The great size and weight of such drums are also disadvantages, as giving rather unmanageable dimensions in a very deep pit.
Her uncle considered that she ought to be kept as long as possible from the knowledge of her position, which might raise a large growth of pride or vanity in her and make her unmanageable; so Victoria was twelve years old before she knew that she was to wear a crown.
The government of the city consisted of (a) a parlamento or consiglio grande, including all who possessed bread and wine of their own - a council soon found to be unmanageable owing to its size, and reduced first to 2000, then to 1500 and finally to Soo members; (b) a credenza or committee of 12 members, elected in the grand council, for the despatch of urgent or secret business; (c) the consuls, the executive, elected for one year, and compelled to report to the great council at the term of their office.