188 



Appendices to Fourth Annual Eeport 



Bread paste around the growth is deeply discoloured. Shining through 

 thin parts of growth this appears of a bluish-green tinge, but when un- 

 covered by the growth it is a leaden-grey with a slight tinge of green. 



Microscopically — It consists of ovoid micrococci somewhat variable in 

 size, '5 fji broad by "6 long. 



4. Moist orange growth, somewhat roughened on the surface, growing 

 most readily in the moister parts of the bread paste ; in fact making very 

 little headway on a dry surface. It follows the moist grooves, where it 

 appears much deeper in colour. Paler because thinner on the slight 

 elevations. 



Microscopically — Ovoid micrococci '35 broad and "45 long ; usually 

 arranged in pairs, but some are single, and others are in chains. 



5. Light yellow growth with smooth moist surface, growing rapidly, and 

 extending over surface, but not passing the under surface of the bread 

 paste. 



Microscopically — Consists of ovoid cells, '7 /a by '8 to 1 fjL, arranged in 

 pairs, clusters of four, or in masses. A sarcina. 



6. Thick, moist, cream-coloured or almost fawn-coloured growth, made 

 up of a series of mamillae or small flattened nodules growing in thickness 

 as well as laterally. 



Microscopically — It consists of zooglea of micrococci averaging about 

 *5 fi. 



7. A green film, somewhat moist and glistening, not growing very 

 rapidly, resembling nothing so much as a smear of olive green paint on the 

 surface of the bread paste. 



Microscopically — It consists of delicate bacteria somewhat granular and 

 often slightly bulged in the middle. Transverse diameter, '3 to '35 fx ; 

 length, 1-2 to 1-6 fx. 



Spore formation in various stages at end of rods. Oval spores, '4 fx 

 broad and '65 fx long. 



8. Yellow or orange-red mass, growing especially where there is an 

 accumulation of moisture, and therefore in the sulci between the crumbs 

 of bread paste, but covers almost the whole surface. 



In gelatine it appears to have a slight pink tinge when examined by 

 reflected light, but is orange as seen by transmitted light. Along the 

 track of the needle it grows as a pale grey streak made up of minute 

 spherules. It does not cau^e liquefaction. 



The cover glasses used in this case were too thick, and it was found im- 

 possible to view the ^\th in objective, but the organism appeared to be a 

 short ovoid or round-ended bacterium. 



9. Light brown growth, in which there is a pink tinge, forming a thick, 

 dark flesh-coloured mass, the surface of which is dry and glistening, as 

 though a thin film had been dried and then varnished. No discolouration 

 of the bread paste. 



Microscopically — It consists of small delicate granular and somewhat 

 varicose bacteria, "5 fx in breadth and 1*6 to 2 /x in length. 



10. There is also a much darker brown, very like the above, except in 

 colour. 



Microscopical characters — A large bacillus, with rounded ends, '7 to "8 

 ix in diameter and 2 to 3 /x in length. 



Spores ovoid, '7 fx broad and 1 to 1 '2 /x, long. 



