Practical dairy bacteriology, prepared for the use of students, dairymen, and all interested in the problems of the relation of milk to public health . CTERIOLOGY It may not always be possible for the student to follow theorder of experiments given. There is no necessity for followingthe order given except that numbers i to 13 should precede all others. LIST OF APPARATUS NEEDED Steam sterilizer. Autoclav. Hot air sterilizer. A common gasoven Used for cooking willdo. Stew pan for cooking media. Flasks—I liter and lyi liter. Test tubes—Board of Health pat-tern. Petri dishes—^4 inchesin diaiheter
Practical dairy bacteriology, prepared for the use of students, dairymen, and all interested in the problems of the relation of milk to public health . CTERIOLOGY It may not always be possible for the student to follow theorder of experiments given. There is no necessity for followingthe order given except that numbers i to 13 should precede all others. LIST OF APPARATUS NEEDED Steam sterilizer. Autoclav. Hot air sterilizer. A common gasoven Used for cooking willdo. Stew pan for cooking media. Flasks—I liter and lyi liter. Test tubes—Board of Health pat-tern. Petri dishes—^4 inchesin diaiheter. Pipettes—I , 2 A few largerones are also of the smaller pipettesshould have a glass tube tocontain it, sealed at one end. Wire baskets to hold test tubes. Test tube racks. Burette holder and 4 burettes. Evaporating dishes. Measuring cylinders—i liter and100 Counting plate or counting card. Platinum wire to be fused intoglass tumblers are frequently more convenient than test tube racks for holding test oven, with constant temperature of 98°. This is ex-pensive and may be 68—^TEST TUBES—^BOAKD OPHEALTH PATTERN LABORATORY WGkU irf DAIRY BACTEKIOLOGY 265; Bunsen tuwic^^ Forceps—Common and Cornet forceps. Microscope, including a Vu-inch immersion lens and plenty of slides and cover counting plate or counting cards. MATERIALS Peptone. Phenolthalein. Salt. Alcohol. Beef extract. Corrosive sublimate. Gelatin—gold label. NaOH. Agar Agar. HCl. Litmus, dry in cubes. Immersion oil. Absorbent cotton. Methylen blue. Common cotton, good quality. ?^ These solutions will best be bought from Normal NaOH dealers. They may be made by methods >? described in No. 2 and 3, but the beginner Normal HCl will hardly be able to make the Normal HCl , lactose and saccharose. PRACTICAL WORKi *No. 1. Washing Glassware. All glassware used in bacte-riological work must be thoroughly washed. No
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Keywords: ., bookcentury1900, bookdecade1900, bookidcu319, booksubjectdairying
