INTRODUCTORY 3 



Detection of Poisons in foods, dress, decoration. 



Examination of parasites and other animal organisms 

 found in the body and human food stuffs. 



Bacteriology and Bacteriological Methods : apparatus, 

 media, modes of culture ; culture and recognition of the 

 principal pathogenic organisms ; bacteriological examina- 

 tion of water, air, and foods ; antitoxins ; principles 

 of serumtherapy and immunization ; cultivation and 

 recognition of micro-organisms in relation to epidemic and 

 other diseases. 



Modes of Examination. 



Physical. Inspection by the unaided senses colour, 

 odour, taste, transparency, turbidity, etc. ; specific 

 gravity ; microscopic examination ; spectroscopic examin- 

 ation ; polariscopic examination. 



Chemical. Examination for proximate principles, e.g., 

 water, solids, fat, sugar, etc. ; search for and identification 

 of chemical impurities such as ammonia, lead, borax, etc. ; 

 quantitative estimations of above. 



Bacteriological. Enumeration of bacteria present ; 

 search for pathogenic forms ; if found, isolation and 

 identification. 



