LABORATORY SUPPLIES AND CHEMICALS 



63 



2001 



2002 



2003 



2005 



2001 BULB, Potash, Vanier's, with drying tube combined, used in combustion 



trains for COa absorption. (Patented) $10.00 



2002 BULB, Absorption, Fisher's, the lightest and most compact tube made .... 5.00 



2003 BULB, Bowen's; the construction of this bulb is such as to insure a thor- 



ough absorption of the gas. Small 2.00 



2004 BULB, Bowen's, large 2.50 



2005 BULB, Potash, New, as designed by C. M. Johnson, for absorbing and 



weighing COa 2.00 



2007 



2008 



2006 BULB, Nesbitt, Carbon Combustion Bulb (designed by C. E. Nesbitt, 



Chief Chemist, Carnegie Steel Co., Edgar Thomson Works). For 

 the rapid absorption of COa by Soda Lime, in Carbon determina- 

 tions in iron and steel. With this bulb the combustion can be run 

 very fast, and safely completed in 6 minutes if so desired. The 

 bulb is refilled in less than one-half of a minute. A slight turn of 

 the stopper closes both inlet and outlet tubes so that bulb is sealed. 

 To Fill. Place layer of glass wool, y 4 inch thick in bottom; add 

 about 60 grams of 12 mesh soda lime, 15% moisture; insert l /4 inch 

 layer of asbestos fibre; add 10 grams of P a O 5 ; then another thin 

 layer of asbestos and a thin layer of glass wool, filling bulb to 

 neck. Fill the hollow stopper with cotton. Bulb weighs about 135 

 grams filled. Using a 1.363 gram sample, 125 determinations of a 

 .50 carbon steel can be made without refilling ...................... $ 4.75 



2007 BULB, Fleming, Carbon Combustion Bulb, for the rapid absorption of 



COa by soda lime in carbon determinations in iron and steel. 

 The upper bulb is filled with phosphoric anhydride, the lower bulb 

 with soda lime 



2008 BULB, Absorption, Wesson's ................. 4>00 



