568 Proceedings of the Royal Society of Edinburgh. [Sess. 
?'b!C9 
(see chart 15) ; but this is quite the exception. Usually it is directly followed 
by a period of intermittent pyrexia of slight range and short duration, the 
temperature gradually returning to normal and complete recovery taking 
place, although death may occur without warning at almost any period of the 
infection. 
Post-mortem, M. melitensis can be isolated from all the tissues and organs, 
though the spleen, which is hypertrophied and hard and dark in colour, and 
the lymphatic glands, which are enlarged and often present soft, almost dif- 
fluent areas in their interior, are the only organs of abnormal appearance. 
