BY R. GREIG-SMITH. 4.? 



This is the only case where very pronounced rickets was present when 

 the motion was sent and the patient only just beginning to be treated. 



All the above infants had the characteristic head, and though two were 

 only mild cases, the others had been fairly severe. 



The bacterial flora uf tliese stools is varied, but the relative 

 preponderance of Bac. coll, communis in some of the stools, and 

 especially in the case of the infant of twelve weeks (A.J.), raised 

 the suspicion that a coZi-intoxication may have some influence 

 otie wa}' or another, either in establishing or accelerating the 

 disease. The examination, howev'er, of stools from healthy 

 children showed that this was not the case, as in these, the races 

 of the co/t-group were well represented. 



The analyses of the stools of a few healthy children are as 

 follows : — 



P.H., aged 15 months. 



MacConkeys medium ... Bg, 95; Bi-,5 



Endo's medium Bg, 90; B5, 5; B^,, "j 



Acid lactose-agar ... ... B5, 100 



Alkaline lactose-agar ... No growth 



Nutriejit agar B-, 100 



Acidity of stool ... ... 1 grm. ^neutral 



Typical bacteria m=;5ac. coll communis (immobllis). 

 Typical streptococcus=none. 



A. T., aged 10 months. 



MacConkey's medium ... B^,* 100 



Endo's medium B^, 50; B^q, 50 



Acid lactose-agar ... ... Bj^, 63; B^^, 7; 8tr. ii., 30 



Alkaline lactose-agar ... Str. ii., 100 



Nutrient agar B^q, 40; Str. ii., 60 



Acidity ... Neutral 



Jypical bacterium;^ Z>ac. coll comimmis. 

 Typical streptococcus^Str. ii. 



*It is evident that B^ was indistinguishable from B^^, on MacConkey's 

 medium and nutrient agar, both of which probably contained a mixture of 

 the two races. This mixture is shown on Endo's medium. 



