8 SOAKING TISSUES AND SECTIONS, ETC. 



(violet poppies 1 ) in a corn-field. In both these cases the micro- 

 phytes were palpably, almost, what we, ancients, would have 

 recognised as Bacterium termo. Finally, a friend who uses the 

 gum-embedding method brought me a few recently made and 

 mounted sections of a tumour. In them bacteria are easily 

 demonstrable. I knew that the intruding organisms could only 

 have made a home in the tissue during the preliminaries of 

 mounting. 



Of course, the temperature of my work-room, and that of my 

 friend, here, in Jamaica, was a tropic temperature of, say, 80^ F., 

 but the temperature of an English summer may well approximate 

 to this ; and, hence, prove equally favourable to the development 

 of saprophytic organisms, and to the delusion of a Bacteriologist. 

 I may here say that, taking warning by my first misleading, I 

 was alive to the danger afterwards, and did, as a precaution, 

 before leaving work for the day, float a lump of camphor on 

 the water with the sections. 



By a teacher the cultivation, for a few hours, of organisms 

 in sections in this way could be made good use of as a first 

 lesson in the microscopy of microphytic organisms in tissues. 

 There is no huddling together ; the bacteria are superficial, scat- 

 tered, solitary, or in small groups — discrete, as the doctors would 

 say of pustules ; and they in every way lend themselves for 

 observation and study. 



Perhaps some may benefit by the warning ; others by a useful 

 hint. 



A Fifth Satellite of Jupiter was discovered by Professor 

 Barnard, of the Leek Observatory, Sept. 12, 1892, and had been 

 observed by him to October 1 7th on seven successive nights. It 

 was also seen by Mr. Reed, at Princetown, on October loth, 

 with a 23-inch telescope. It was a star of the thirteenth magni- 

 tude. From three hundred micrometric observations by Prof. 

 Barnard, and the observation at Princetown, a period has been 

 approximately deduced of eleven hours and fifty-seven minutes. 



