Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 45
Between it and the interior of thewell, a wall of rock is left, to preventpersons falling into, or even lookingdown it (which in some cases woiild beequally fatal), except through certainopenings or windows, by means of whichit is faintly lighted from the interior ofthe well. The animals descend by… … Note.—However old and numerous wells with stairs in them ma) be,most of the ancient ones were constructed without them; hence the neces-sity of some mode of raising the water. From the earliest ages, a vesselsuspended by a cord, has been used by all nations—a device more simpleand more extensively…
Hydraulic machinery · Pumping machinery
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