Part 8

DROYLSDEN RECTORY, MANCHESTER, _July 30th, 1880_.

MY DEAR SIR,—I can scarcely express to you the pleasure I have had in the use of your splendid 6-1/2 in. mirror. Both in light grasping power, and in the separation of close double stars, it has far surpassed my highest expectations, and quite removed the prejudice I entertained against reflectors. Though possessing a first-class 4-1/4 in. refractor, equatorially mounted in my observatory, I now use your mirror in preference, in the more difficult and delicate observations, and with it am able to master the most severe tests given for 6-1/2 in. aperture. I would not be without one of your finely figured mirrors, now that I have tested their merits, for any consideration.

(_Signed_.) Mr. G. CALVER.

* * * * *

(_From the same Gentleman._)

THE RECTORY, DROYLSDEN, _October 4th, 1880_.

MY DEAR SIR,—I have given your 8-1/2 in. mirror one night’s trial, and it has greatly pleased me. Its resolution of the great cluster in Hercules was truly magnificent, and the clearness with which it brought out stars very difficult with 6-1/2 in. was highly gratifying. I hope to turn it to very good account.

Yours faithfully, (_Signed_.) Mr. G. CALVER.

[ Illustration: (FIG. 1.) ]

[ Illustration: (FIG. 2.) ]

[ Illustration: (FIG. 3.) ]

Printers: WARREN HALL & LOVITT, 88, Camden Road, London. N.W.

TRANSCRIBER’s NOTE: The constelation Boötis also appears in the original spelt as Bootis and Böotis these have all been corrected to Boötis without being noted below. Also variations in hyphenation remain unchanged.

The following typos are corrected in this e-text and are shown within the text as

Original Replaced by Page 4 Many of the speculas Many of the specula Page 7 on the pitch or the pitch Page 24 and proceed and proceed. Page 28 kept is glass kept in glass Page 31 See p. 27, Fig. 4 See p. 20, Fig. 4 Page 39 (prices for 8-1/2 then 6-1/2) (prices for 6-1/2 then 8-1/2) (appendix) Page 14 Rev. W. P. MATTHEWS REV. W. P. MATTHEWS Page 24 (a 10 in. Alt Azimuth. (a 10 in. Alt Azimuth). Page 32 Rev. E. A. FISHBOURNE, M.A. REV. E. A. FISHBOURNE, M.A.