236 



CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



5315. 



5316. 



No. 5318. 



Nos. 5320-6. 



Nos. 5320-6. 

 (Cross-section.) 



Nos. 5328-30. 



FILTERING CYLINDERS only of No. 5314. 



No ................................... A 



Each ................................. $1.15 



GLASS MANTLES only of No. 5314. 

 No ................. . 



Size, inches 

 For cylinder, No 

 Each 



B 

 1.25 



A 

 50 



C 

 2.50 



D 

 3.00 



E 

 3.15 



BCD 



4x1 5%x2V 2 11x2% 

 B C D&E 



.75 1.00 1.25 



F 

 3.50 



E 

 14x4 



F 

 1.75 



5318. FILTERING APPARATUS, for Serums, for pressure filtration. The outfit consists of a cast 



iron reservoir enameled inside, to which is attached the filter chamber, containing the por- 

 ous tube or bougie. A stop-cock is provided in the connecting tube between the reservoir and 

 filter chamber. Diameter of reservoir, 3% inches; depth of reservoir, 12 inches; height of 

 apparatus over all, 46 inches; floor space occupied, 18x18 inches. Complete with pressure gage, 

 pump, connecting tubing and stand as shown in illustration 125.00 



5319. FILTER TUBE only of No. 5318. Length over all, S 1 /^ inches; width at base, 1% inches; width 



at top % inch 1.95 



5320. FILTERING APPARATUS for Soils, Brigg's Design, as described in Bulletin No. 31 of the 



Bureau of Soils. Extensively used in the filtration of soil solutions. Can be used in filter- 

 ing any solution under pressure where a clear filtrate is desired. Consists of a cylinder of 

 brass nickel-plated on the outside and heavily plated with silver inside, fitted with a Pasteur- 

 Chamberland filter tube of unglazed porcelain. Capacity of reservoir, approximately 800 

 cc 16.00 



5322. FILTERING APPARATUS for Serums, Brigg's Design, same as No. 5320, but with special bou- 

 gie for serum filtration 16.00 



5324. FILTERING APPARATUS for Soils, Brigg's Design, similar to No. 5320, but of iron, porcelain 

 lined. Capacity of reservoir, approximately 750 cc. Complete with Pasteur-Chamberland 

 Filter Tube ..." 13.00 



5326. FILTERING APPARATUS for Serums, Brigg's Design, same as No. 5324, but with special bou- 

 gie for serum filtration 13.00 



5328. FILTERING APPARATUS for Soils, Brigg's Design, similar to No. 5320, but complete with air 

 pump and tank mounted on a substantial base. This makes a very convenient outfit for field 

 use in soil investigations. Capacity of reservoir, about 250 cc. Complete as illustrated 30.00 



5330. FILTERING APPARATUS for Serums, Brigg's Design, same as No. 5328, but with special 

 bougie for serum filtration 30.00 



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