large Fitz lenses, the Clarks reworked Campbell's objective. 27 The tele- 

 scope tube — which is wooden, and probably the original one from the 

 Fitz shop — now carries a plaque at the eye-end reading "ALVAN 

 CLARK & SONS CAMBRIDGEPORT, MASS. 1867." This instru- 

 ment was later sold to S. V. White (q.v.), and is now at Wellesley 

 College (q.v.). 



Carleton College, in 1878, purchased an 8^4 -inch Clark equatorial. 

 As the young college in Northfield, Minnesota, did not then have the 

 requisite $3000, the Clarks agreed to wait a year and a half for the 

 money. 28 Eight years later the Clarks made a third, photographic cor- 

 recting lens, of the same aperture, and remodeled the mount to cor- 

 respond to the shortened photographic focal length. This triple lens 

 combination gave excellent star images over a field of 40 minutes radius. 

 Guiding was done with a 5-inch telescope, of the same focal length as 

 the triplet, provided with the original Clark micrometer. 29 With an 

 enlarging lens made by Brashear in 1892, this instrument yielded a fine 

 series of solar photographs. 30 The Clarks also provided Carleton with a 

 chronograph 31 and a 4.8-inch object-glass for their 1885 Repsold merid- 

 ian circle. 32 



The Beard Observatory of Central College in Pella, Iowa, is named 

 after R. R. Beard (q.v.) . By 1899 the college could advertise that its stu- 

 dents were permitted access to Beard's private observatory and his 6/ 2 - 

 inch Clark equatorial refractor; 33 and five years later they announced 

 that Beard had donated his telescope to the college. 34 



Since 1922 the Morrison Observatory (q.v.) has been affiliated with 

 Central College in Fayette, Missouri. 35 



27 Alvan Clark to Edward S. Holden, 8 March 1876 (letter in Lick Observatory 

 Archives) . 



28 Delavan Leonard, The History of Carleton College (Chicago, 1904), p. 202. 



29 Publications, Goodsell Observatory of Carleton College, vol. 5 (191 7), p. v. 



30 Ibid., vol. 3 (1901), pp. 1-2. 



31 Ibid., vol. 2 (1901), p. 2. 



32 [William W. Payne] "The New Repsold Meridian Circle of Carleton College 

 Observatory," Sidereal Messenger, vol. 6 (1887), p. 304. 



33 Catalogue of the Central College, Incorporated (Central University of Iowa) (1899), 

 p. 10. 



34 The Alumni Record (Central University of Iowa), vol. 2 (1904), no. 5, p. 6. 



35 Robert R. Fleet, "Dedication of the Morrison Astronomical Observatory," 

 Popular Astronomy, vol. 44 (1936), pp. 476-480. 



46 



