Mechanical Methods of Displaying Catalogues and Indexes. 57 COST AND SPACE OCCUPIED BY 1000 ENTRIES. Cost. Space occupied. American Card Cabinet 22/- 840 cubic inches. Stone's Card Cabinet 2i/- 748 ,, ,, Vernon Card Tray 25)- 380 ,, Bonnange Card Tray (42 6 if 500 cards used both sides) 6$/- 480 ,, ,, Staderini Card Tray (500 only) 3i/- 400 ,, ,, Staderini Sheaf Holder (900 only)* n/8 135 ,, ,, Sacconi Sheaf Holder (2 vols., 250)* 2O/- 200 ,, ,, Leyden ,, ,, 6/- 128 ,, ,, Brown ,, . ,, 8/- 56 ,,
- These are ruled on one side only, as if it were intended that the front side
alone should be used ; but in my calculation I have allowed for the use of both sides. Applying these results to a catalogue of 10,000 entries, the American Cabinet would cost 11, at the American price, prob- ably more when imported here, and accommodate two readers at a time. Stone's cabinet would cost 10 ios., and also accom- modate but two readers. Vernon's Trays would cost 12 ios. (probably only 10 ios. for this number), and accommodate ten readers. The Bonnange Trays would cost ^"32 ios. (21 6s. if both sides of cards used), and accommodate five readers at double trays, or ten at single. Staderini's Card Trays would cost 15 ios., and accommodate ten readers. Staderini's Sheaf Holders would cost 5 i6s. 8d, and accommodate ten persons. Sacconi's Sheaf Holders would cost 10, and accommodate twenty readers. The Leyden Holders would cost ^"3, and accommodate forty readers ; and Brown's Holder would cost $ 153., and accommodate ten readers. Of course allowance should be made for the racks or pigeon-holes required by the sheaf holders, which would in most cases nearly double the space. Before concluding these notes on the " Sheaf" catalogue system, I should mention that all the appliances before described have slips which are well adapted for type-writing, and this cannot be said of any of the card plans ; as the Hammond machine seems to be the only one which lends itself readily to card printing. But all the machines now on the market, including the Ham- mond, can be used for printing slips for the "Sheaf" system. This is a very important consideration. I may also point out that manuscript additions to any slip can be made without removing it from its place, which is an important advantage not possessed by any of the " Card " systems. I should have mentioned that there is a German slip album which is used for cataloguing in the university libraries, but it is clumsy, and the slips are only
