Estimates of Cost for Chemical Supplies. 



1093 



Number 



54,400. Microscope with 

 optical outfit for 60 

 to 1400 diameters, 

 joint fo- tilting coarse 

 and fine tube focus- 

 sing, illuminating ap 

 paratus with iris aia- 

 phragm, with triple 

 revolving nose-piece 

 54,850. Demonstration 



thermometer .... 

 54,859. Cylindrical thermo- 

 meter for 20 to 

 + 360 C 



Cooler, Liebig's, 

 300 mm long . 



500 

 Crucible of nickel, 



with covering, 25 ccm 



Crucible of quartz 

 glass, transparent, 

 with covering, 25 ccm 



Crucible of platinum, 

 with covering, 12 ccm 

 capacity, 12 g weighing 



Platinum wire, 0,35 

 mm, piece of 300 mm 

 - 0,25 mm, piece 

 of 300 mm . . . 



Sheet-platinum, 

 40 x 40 x 0,03 mm 



Spongy platinum . 



Platinum asbestos 10 g 

 Total 



For Eealsantalten For Gymnasia 



s. d. Number s. d. 



46. 11. 10 



0. 13. 5 



1. 0. 



2. 6. 



3. 15. 



0. 3. 



Apparatus and Supplies for definite experiments. 



62,183. Voltameter . . . 

 62,220. Hofmann's appa- 

 ratus, one with pla- 

 tinum electrodes, an- 

 other with carbon 

 electrodes 



Apparatus for ana- 

 lyzing gases (M. T., 

 Fig. 241) with phos- 

 phorus pipette, 2 

 simple gas pipettes, 1 

 combined gas pipette 



Apparatus for de- 

 monstrating the in- 

 crease of weight of 

 a burning candle . . 



Igniting tubes (M. 

 T., Fig. 250) .... 



School apparatus 

 for generating elec- 

 trolytically hydrogen 

 or oxygen (Ztschr. 2. 

 d. phys. u chem. TJ. 

 23, 1910, p. 284) . . 



Apparatus for the 

 electrolytical disen- 

 gagement of chlorine 

 (M. T., Fig. 248) . . 



Mercury gas-mea- 

 suring bell (Ztschr. f. 

 d. phys. u. chem. U., 

 23, 1910, p. 287) . . 

 51,246. Calibrated gas 

 bells, 500 ccm . . . 



0. 4. 



0. 18. 1 



0. 12. 



0. 12. 



1. 12. 

 0. 16. 



Total 



11. 6. 



1. 14. 



Supplies for Pupils' exercises in chemistry 



after Prof. Schaefer, Recklinghausen (for 8 work places). 



Number 



per place s. d. 



Iron support 1 0. 1. 10 



Iron support rings 3 0. 2. 3 



Clamp with double socket . . 1 0. 2. 8 



Retort holder with double socket 1 0. 3. 3 



Three-sided file 1 0. 0. 11 



Number 



per place s. d. 



51,163. Rubber tubing, 5 mm aperture 1m 0. 1. 2 



Pinch cock 1 0. 0. 3 



51,165. Rubber tubing for connecting 



gas burners 1m 0. 1. 



51,186. Bunsen burner 1 0. 2. 6 



51,192. Slit annex 1 0. 0. 9 



51,220. Tripod, iron, 100 mm diam. . 1 0. 1. 



51.226. Wire net of iron 2 0. 0. 8 



51.227. Wire net of brass . . . .' 1 0. 0. 5 

 51,308. Iron crucible tongs 1 0. 0. 10 



Test glass holder, sheet brass 



with slider 1 0. 0. 4 



Horn spatulum, 12 cm .... 1 0. 0. 4 



Iron spatulum, 18 cm .... 1 0. 0. 4 



Clay triangles, 40 x 60 mm sides 2 0. 0. 5 



51,322. Pulverising dish, 100 mm diam. 1 0. 1. 1 



51,325. Blowpipe 1 0. 1. 



51,341. Measuring glass, 100 ccm . . 1 0. 1. 3 



51.345. Beakers, 1 set 8 0. 1. 9 



51.346. General test glasses, 150 x 16mm 10* 0. 0. 6 

 Test glasses of refractory glass 2 0. 0. 6 



51.347. Test glass stand for 12 glasses 1 0. 1. 6 

 51,349. Watch glasses, 65 mm .... 3 0. 0. 9 



Clamp for same 1 0. 0. 5 



Sand bath dish, 15 cm diam. . 1 0. 0. 7 



51.352. Porcelain dishes, 60,70and 85mm 3 0. 0. 8 



51.353. Porcelain crucibles, 65ccm capacity 1 0. 0. 6 



51.368. Powder jars. 300 ccm .... 4 0. 2. 



51.369. Bottles for liquids, 300 ccm . 2 0. 0. 9 



51.370. Bottles for chemicals, 150 ccm, 



with inscription 12 0. 14. 6 



1. HC1 cone., 2. HC1 diJ., 3. H 2 S0 4 , 

 cone., 4. H 2 SO 4 dil., 5. HN0 3 , 

 6. Na 2 CO 3 , 7. (NH 4 ) 2 S, 8. KOH, 

 9. Na 2 HP0 4 , 10.(NH 4 )OH, 11. Bad., 



0. 4. 



0. 18. 



Total . .29. 10. 6 



Grand Total of Collection 6. 



For Real- For Gym- 



anstalten nasia 



Stands, Small Tables, Supports . . 5. 18. 7 3. 18. 11 



Buiners and accessories ...... 11. 1. 11 3. 5. 8 



Hollow wareof glass,porcelain,clayetc. 28. 9.10 6. 4. 7 



Divers kinds of supplies and tools . 4. 4. 6 0. 7. 



Materials, chemicals, bottles and boxes 63. 3.11 11. 1.10 



Tubing, wiring, terminals, stoppers 2. 15. 7 0. 15. 5 



Apparatus for general use .... 46. 11. 10 0. 13. 5 



Apparatus and supplies for determi- 

 nated experiments 11. (i. 1. 14. 



Grand total (without supplies for 



pupils' exercises) 173. 12. 2 28. 0. 10 



Supplies for pupils' exercises, for 



8 work places 29. 10. 6 



Grand total with supplies for pupils' ~ 



exercises 203. 2. 



