A Chicago paper lately contained mention of the stereopticon slide collection made during thirty years by the late Professor C. S. Farrar of Milwaukee, which is now owned by his daughter, Miss Frances Farrar of Chicago. The- collection consists of 23,070 slides, 1,116 of which are colored, and deals principally with the civilization of the Mississippi valley. It is reported that the collection is likely to be
moved to Boston, and the prospective loss of Chicago is greatly regretted.