11 APPARATUS AND CHEMICALS REQUIRED 



Page Item 



NO. Estimation of Ash, &c. 



12 19 Muffle furnace, No. 461. 

 12 20 Fireclay muffle for ditto. 

 12 21 Platinum wire, 6 in. long. 



12 22 Tripod, triangular, 8 in. high. 

 12 23 Bunsen burner, \ in. 



Argand burner. 

 12 24 India-rubber tubing for above, heavy walls. 



12 25 Pipe-clay triangle, Clowes' improved form. 



Triangle silica. 



13 26 Filter-paper, C.S. and S. 589, black band. 



15 27 Porcelain basin, round-bottomed, with spout, dia- 



meter 3 1 in. 



Estimation of Acidity 



1 6 28 Acidimeter for testing acidity, consisting of special 



burette, stand, and dropping bottle. 



Estimation of Fat 



17 29 Gerber's butyro meter for 4 samples, with acces- 



sories as follows : 



4 bottles ; 



i pipette, 3 c.c. for cream ; 



i ,, 10 c.c. 100 divs. for water ; 



I ,, ii c.c. for milk ; 



i 10 c.c. for acid ; 



i i c.c. for amyl alcohol. 



17 30 Leffman-Beam centrifugal machine, for 4 samples, 

 with accessories as follows : 



4 bottles ; 



i pipette, 3 c.c. ; 



i 9 c.c. 



i 15 c.c. 



20 31 Richmond's shaking stand for 8 Gerber's tubes. 

 25 32 Pair of tared tin dishe.s, 2 in. by if in. for weighing 

 cream. 



Gravimetric Estimation of Fat 



29 34 Werner-Schmid tube. 



28 35 Fat extraction thimble. 



28 36 Glass mortar, 3 in. diameter, with pestle. 



