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of William Herschel.
93
"A series of observations on Venus, begun by me in April, 1777, has been continued down to the present time.... The result of my observations would have been communicated long ago if I had not flattered myself with the hope of some better success concerning the diurnal motion of Venus, which has still eluded my constant attention as far as concerns its period and direction.... Even at this present time I should hesitate to give the following extracts if it did not seem incumbent on me to examine by what accident I came to overlook mountains in this planet of such enormous height as to exceed four, five, or even six times the perpendicular height of Chimboraço, the highest of our mountains.... The same paper contains other particulars concerning Venus and Saturn. All of which being things of which I have never taken any notice, it will not be amiss to show, by what follows, that neither want of attention, nor a deficiency of instruments, would occasion my not perceiving these mountains of more than twenty-three miles in height, this jagged border of Venus, and these flat, spherical forms on Saturn."
The reply of Schroeter (1795) is temperate and just. It does him honor, and he generously gives full justice to his critic.
It would hardly be worth while to mention this slight incident if it were not that during these years there certainly existed a feeling
