IMPORTANCE OF REGURGITATING HABIT 



81 



aro nsnally t'ound in great nunibers in these 'spots' and niorec^ver, 

 as will be shown later, fluid regurgitated from the crop is used to' 

 dissolve or moisten sugar and (jther similar dry food materials.'* 



Fig. 35. Portion of window pane from fiy-infested cow-shed, showing dark- 

 coloured faecal spots and more numerous light-coloured vomit spots. Natural 

 size. 



The importance of this habit, from the point of view of bacterial 

 contamination, cannot be emphasized too strongly. 



The rate of digestion depends chiefly on the temperature and 

 the nature of the food. At (ordinary room temperatures the 



H. H.-F. 6 



