...after twenty-five minutes ol'coiistaut observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change...slightest degree, the rapidity of its course. I continued toi watch the same orifice, at short intervals, for five hours, sometimes observing it for a quarter...

...but, after twentyfive minutes of constant observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change...equal velocity. About the end of this time, however, 1 observed the current become perceptibly languid, the opaque flocculi of feculent matter, which were...

...but after twenty-five minutes of constant observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change...equal velocity." About the end of this time, however, the current became languid, and, in the course of another hour, it ceased entirely. Similar currents...

...but after twenty-five minutes of constant observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change...equal velocity." About the end of this time, however, the current became languid, and, in the course of another hour, it ceased entirely. Similar currents...

...but after twenty-five minutes of constant observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change...equal velocity." About the end of this time, however, the current became languid, and, in the course of another hour, it ceased entirely. Similar currents...

...course. I continued to watch the same irifice, at short intervals, for five hours, sometimes ibserving it for a quarter of an hour at a time, but still the...equal velocity." About the end of this time, however, the current became languid, and, in the course of another lour, it ceased entirely. Similar currents...

...after twenty-five minutes of constant observation, I was obliged to withdraw my eye, from fatigue, without having seen the torrent for one instant change...stream rolled on with a constant and equal velocity. After this the current gradually declined in rapidity, and in the course of another hour ceased entirely....

...:ifu-r twenty-five minutes of constant observation I was obliged to withdraw my eye, from fatigue, without having seen the torrent for one instant change its direction or diminish the rapidity of its course." Without the delicately-engraved figures it is impossible to convey an...

...but after twenty-five minutes of constant observation I was obliged to withdraw my eye, from fatigue, without having seen the torrent for one instant change its direction, or diminish the rapidity of its course." The circulation is not the same in all species, from the discharging aperture...

...but after twenty-five minutes of constant observation I was obliged to withdraw my eye, from fatigue, without having seen the torrent for one instant change its direction or diminish the rapidity of its course." Without the delicately-engraved figures it is impossible to convey an...