MICRO ANALYTICAL AND BACTERIOLOGICAL LABORATORY 429 



It will be found that everything which it may be desired to file may be 

 classified under one or the other of the groups above named. In so far 

 as practicable, every article should be listed under its more common 

 English name, with exceptions. For example, the various slides of the 

 group bacteria, may be arranged in the alphabetical sequence of the 

 true scientific names. A like classification suggests itself for the groups 

 protozoa and perhaps parasites. 



A properly arranged and well stocked exhibit, as above suggested, is 

 of equal importance with the laboratory equipment and the working 

 reference library. The entire exhibit should be gone over carefully from 

 time to time to see if labels are still in place, if still complete according to 

 the full alphabetical list, etc. Substances which have undergone de- 

 composition or other spoilage, should be discarded and replaced by fresh 

 samples. Leakage must be corrected. 



The following is a diagram of a bacteriological and microscopical 

 laboratory: 



B 



D 



PIG. 97. Plan of bacteriological and microscopical laboratory, using corner room 

 in the pharmacy. (Scale 4 feet to the inch.) A, shelves on three sides of the room, 

 B, work table. C, cases and shelves for reagents, chemicals, glassware, etc. D, case 

 for reference books. E, sink. F, drain board, i, Arnold steam sterilizer; 2 hot waste 

 filter; 3, hot air sterilizer; 4, rice cooker; 5, opsonic incubator; 6, incubator; 7, compound 

 microscope; 8, stool; 9, hat and coat books. 



The following books will make an excellent nucleus to which additions 

 are to be made from time to time. 



i. Bailey, E.H.S. The Source, Chemistry and Use of Food Products. 

 P. Blakiston's Son and Company. 1914. 



