Size
2 of the 7 encyclopedias on this shelf carry an entry for Size. Both are reproduced below, so you can see where they agree and where they differ.
The Encyclopedia of Founding (1892)
A kind of soft glue made from skins, hoofs, membranous tissues, and other parts of animals, by boiling for some hours, then dissolving, straining, and again boiling to a jelly-like consistence. Gilder's Gold Size.--Boiled linseed-oil thickened with yellow or calcined red ochre, ground smooth and thinned with oil of turpentine. Letters on Glass.--A size for this purpose is copal varnish one part, Canada balsam two parts. Another: pure mastic varnish, or pale, quick-drying copal varnish. Artist's Size.--Dissolve over the fire in a pint of water 4 ounces of Flanders glue, 4 ounces of white soap; then add 2 ounces powdered alum. Stir the whole and leave to cool. Size to fasten Rubber to Wood or Metal.--Soak pulverized gum-shellac in ten times its weight of ammonia; in three or four days a shiny mass is obtained, which will become liquid without the use of hot water. This softens the rubber, and becomes, after the volatilization of the ammonia, hard and impermeable to gases and fluids whenever it is used on rubber connected to the wood or the metal of steam or other apparatus.
American Watchmaker and Jeweler (1892)
Degree. Columbus____18 Open Face Breguet____23 Columbus_____6 Open Face Breguet______ Elgin_______18 Open Face Breguet____66 Elgin_______16 Open Face Breguet____52 Elgin_______16 Flat Hair Spring_____52 Elgin_______10 Flat Hair Spring_____50 Elgin__6 and 8 Flat Hair Spring_____50 Elgin________0 Flat Hair Spring_______ Illinos_____18 Open Face Breguet____33 Illinois____18 Hunting______________84 Illinois____18 Open Face Flat_______89 Illinois____16 Illinois_____6 Hunting______________52 Illinois_____4 Hampden_____18 Dueber Hunting_______80 Hampden_____18 Open Face____________75 Hampden_____16 Hampden______6 Hunting______________50 Howard______18 Old Model_____________5 Howard______18 New Model____________23 Howard______16 Howard_______6 Rockford____18 _____________________27 Rockford_____6 Waltham_____18 Key Flat Hair Spr'g__48 Waltham_____18 O. F. Hair Spring____61 Waltham_____18 Breguet______________50 Waltham__14-16 _____________________42 Waltham____4-6 _____________________50 Waltham______1 _____________________42 Seth Thomas_18 Open Face____________50 Seth Thomas_18 Hunting______________52