652 METHODS AND FORMULAS V 11.1-V 11.2 



11 FLUID AT ROOM TEMPERATURES 



11.1 Aqueous Base 



11.1 Bellido 1897 lest. 1927 ips. 113G0, 47:9 



formula: water 48, acetic acid 50, abs. ale. 2, gelatin 6 



preparation: Soak gelatin in water overnight. Melt at 90°C. and add other ingredients. 



note: Don Ernesto Caballero Bellido 's Spanish writings fall naturally under the name 

 "Caballero." The present writer uses "Bellido" because that is the last name under 

 the title of the English paper cited. The Royal Microscopical Society avoids the 

 dilemma neatly bj omitting any reference to this paper in the author index of the 

 volume in question. 



11.1 Caballero 1897 see V 11.1 Bellido 1897 (note) 



11.1 Semmens 1938 CSll — auct. Microscope, 2 :\2Q 



formula: water 65, acetic acid 25, gum arable 20 



11.1 Spence 1938 see V 11.1 Gage 1901 (note) 



11.2 Nonaqueous Base 



11.2 Beale 1880a Gold size Beale 1880, 54 

 formula: linseed oil 100, red lead 4, umber 1.5, white lead 5, yellow ochre 5 

 preparation: Mix oil, red lead, and umber thoroughly. Boil 3 hours. Allow to settle. 



Decant clear fluid. Grind white lead and yellow ochre together. Mix with boiled oil. 

 Reboil 3 hours. Allow to stand. Decant. 



11.2 Beale 1880b Brunswick black Beale 1880, 55 



formula: Trinidad asphalt 50, boiled linseed oil 50, turpentine 100 

 preparation: Boil asphalt in linseed oil for some time. Cool. Mix turpentine with cooled 



mass. 

 note: Beale directs that 4' 2 oz. of linseed oil be boiled with half an ounce of litharge 



"until quite stringy." 



11.2 Beale 1880c Sealing wax varnish Beale 1880, 55 



formula: 95% ale. 100, sealing wax 40 



note: This cement should be made with a sealing wax of the period, not with the 

 modern variety which is mostly rosin. A typical contemporary recipe is: 5 parts 

 shellac, 9 parts Venice turpentine, 7 parts rosin, 6 parts pigment. (Spon, Workshop 

 Receipts, 2nd series. London 1883). 



11.2 Beale 1880d Damar cement Beale 1880, 55 



formula: benzene 60, gum damar 40 



11.2 Beale 1880e Cement for glass Beale 1880, 60 



formula: chloroform 65, rubber 1, gum mastic 35 



preparation: Dissolve chloroform in rubber. Add gum mastic to solution. Digest at 

 50°C. 1 week. Allow to settle. Decant. 



11.2 Behrens 1883 Behrens 1883, 192 



formula: abs. ale. 50, ether 10, turpentine 50, copal in fine powder 50 

 preparation: Dissolve ingredients with prolonged but very gentle heat. 



11.2 Bell's cement 



This was a proprietary product of secret composition; the formula appears to have been 

 lost. 



11.2 Bellido see V 11.2 Hitchcock 1884 (note) 



11.2 Benoit-Bazille lest. 1942 Langeron Langeron 1942, 666 



formula: tiu'pentine 30, asphalt 20, gold size 50 

 preparation: Dissolve asphalt in turpentine. Add gold size to solution. 



