LABORATORY SUPPLIES 



The items listed below will suffice for the demonstrations and for the laboratory work of ten pupils. 

 For larger classes order proportionately of the items starred. In many cases suitable substitutes can be 

 obtained or made by teacher and pupils. For example, satisfactory alcohol lamps may be made of old 

 bottles ; tin cans and jelly glasses, pickle bottles, and other containers can be put to work in place of 

 expensive vessels ; and so on. At the end of the list are some useful directions for preparing various 

 solutions etc. 



GLASSWARE 

 i aquarium, 1 2-liter 



* i o battery jars, 2-qt. 



* 10 beakers, 6o-cc. 



* 10 beakers, i2o-cc. 



* 10 beakers, 250-00. 



i large bell jar, open top, with cork 



* 2 doz. bottles, 8-oz., wide-mouth, with corks to fit 



* 5 doz. bottles, 4-oz., wide-mouth 



* 2 doz. corks to fit above 



* 2 sets reagent bottles marked : 



Hydrochloric Acid 

 Nitric Acid 

 Ammonia 

 Fehling's solution 

 Acetic Acid 

 Limewater 

 Tincture Iodine 



* 10 cylinders, 500-0:. or rooo-cc., graduated 



* 10 flasks, 25o-cc. 



* i o funnels, 3-in. 



1 crucible 30-0:., porcelain 



2 doz. evaporating dishes, 8o-cc., porcelain 



* 2 doz. Petri dishes 

 i box cover glasses 



i gross glass slides 



* 10 magnifiers, pocket, double 

 i lens, double convex 



* i doz. medicine droppers 



* 3 thermometers, 10 to + 1 50 C. 



* 10 thistle tubes 



* 4 Ib. glass tubing, assorted sizes 



* ^ Ib. capillary tubing 



* 4 doz. tumblers 



* i gross test tubes, 6" x -|" 



* 3 doz. quart preserving jars 



* i doz. pint preserving jars 



APPARATUS 



i trip balance with weights 



* i doz. agate pans, lo-in. 



* 6 sets blocks, wooden cubes 

 I blowpipe, large 



i brush, fine camel's-hair 

 * doz. brushes, test-tube 



* 10 Bunsen burners or alcohol lamps 



* 10 mirrors, small 



* 10 mirrors, large 



* 5 pairs dividers 



i set cork-borers 

 i egg-beater 

 i exhaust pump 

 i file, triangular 



* 5 microscopes, compound, double nosepiece 



* i doz. dissecting needles 



* 5 ring stands with rings and clamps 

 i section-cutter, hand 



* 10 dissecting scalpels 



* 10 pairs dissecting scissors 



i storage battery or 6 dry cells 



* 10 test-tube racks 

 i tape measure 



* i doz. paper scales, 150 cm. divided to mm. 

 i triangle, pipestem 



i water bath or double boiler 



1 Arnold sterilizer 



* 5 pieces wire gauze 



* 3 ft. rubber tubing, -^-in. 



* 3 ft. rubber tubing, T \-in. 



* 3 ft. rubber tubing, ^-in. 



* 3 ft. rubber tubing, T \-in. 



* 25 ft. rubber tubing for gas burners 



* i doz. rubber stoppers, No. 3, i hole 



* i doz. rubber stoppers, No. 3, 2 holes 



* i doz. rubber stoppers, No. 4, I hole 



* i doz. rubber stoppers, No. 4, 2 holes 



* \ doz. rubber stoppers, No. 5, i hole 



* \ doz. rubber stoppers, No. 5, 2 holes 



* 2 doz. rubber stoppers, No. 3 



CHEMICALS AND SUPPLIES 



* 2 doz. small blotters 



2 large blotters, blue or green 



* i doz. candles, short sizes 



* i Ib. absorbent cotton 



* i package filter paper, 5-in. 

 i quire filter paper, gray 



* i doz. boxes matches 

 i package splints 



* 4 oz. rubber bands, ^ in. x 4 in. 

 i stick sealing wax 



i gal. alcohol, grain 



4 gal. alcohol, wood or denatured 



i Ib. acetic acid 



\ Ib. alum, potassium 



4 oz. ammonium nitrate 



1 Ib. ammonium chlorid, granular 



2 Ib. ammonium hydroxid 



[160] 



