APPARATUS 



The following lists contain all the apparatus and sup- 

 plies necessary for a satisfactory presentation of the 

 laboratory exercises given in this manual. Many of the 

 most expensive pieces of apparatus, marked with an 

 asterisk in the following lists, may be eliminated with- 

 out requiring the omission of many exercises. In many 

 cases it is possible to substitute simple improvised appa- 

 ratus for these more expensive pieces. 



A school equipped for laboratory work in physics and 

 chemistry is equipped, also, for a general science course. 

 The expense of equipping a laboratory for general science 

 will be nominal, if the equipment in the other labora- 

 tories in the school can be used. 



The following named apparatus can be obtained from 

 dealers in laboratory supplies. The prices given here 

 are only approximate. Any school can secure a discount 

 of from 10 to 25 per cent from these prices. 



A. PHYSICAL APPARATUS 



1. For demonstration work, one set for the whole 

 class. 



*1 air pump $10.00 3 animal membranes. . . .30 



2 balances, spring 1.00 1 bar compound 50 



*1 balance and weights. 9.08 1 blow pipe 14 



1 ball and ring 1.00 1 brass globe, hollow.. 2.25 



1 balloon, rubber 06 2 clamps, burette 16 



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