PROCEEDINGS OF THE SOCIETY. 1001 



now cultivating them. They grew iu meat gclatiu, and apparently 

 commenced by constantly turning corners ujion tliemselves so as to 

 form nodules. "When they had exhausted the gelatin surrounding 

 them, they commenced to throw out threads in various directions, at 

 the ends of which fresh nodules were formed. These in turn threw 

 off other threads, but always in the direction of unexhausted gelatin, 

 and how it was that these bacilli had this extraordinary faculty for 

 finding out the best method of obtaining nutriment was a very curious 

 question. The peculiarities described were drawn upon the black- 

 board by the speaker, who referred to the species as Bacillus Alvii. 



Dr. Maddox thought that in speaking of the absence of this class 

 of exhibits at the Health Exhibition, Prof. Bell had omitted to men- 

 tion what was shown in the Foreign Sections, amongst which he 

 might refer to Pasteur's and Miquel's tables, where a very complete 

 series of objects was shown, particularly as illustrating the develop- 

 ment of the silkworm disease. He had been in correspondence with 

 Dr. Miquel and found that he was carrying out his experiments in a 

 very extensive and complete manner, with as many as 500 bulbs at 

 one time. 



Prof. Bell said that his remarks referred only to the English 

 exhibits. He did not at all intend to ignore what was shown by 

 foreign exhibitors. 



Mr. Beck said the greatest advantage of the display at the Exhi- 

 bition was in the demonstrations which took place. Where such 

 things were only shown in bottles, people passed by them and were no 

 wiser. 



The President said the subject was so extremely interesting that 

 it was to be hoped that all who could do so would visit the labora- 

 tories. He was sorry that he had not himself yet had an opportunity 

 of going, but he intended to do so. 



Dr. Millar said he had been very much interested by what he had 

 seen at the laboratory. Mr. Cheyne lectured before a very small 

 audience, but those who attended could not fail to be much gratified. 



Mr. J. D. Hardy exhibited and described his flat collecting bottle 

 made of sheet glass, with thick indiarubber cemented between (see 

 p. 977). 



The President thought that all pond hunters would at once see 

 the great advantage of having their collecting bottles of this shape, 

 so that they would go easily into the coat pocket. The contents could 

 also be readily examined under tho Microscope. lie considered it a 

 most admirable contrivance for tho purpose for which it was designed. 



The following Instruments, Objects, &c., were exhibited:— 

 Mr. C. Bock : — Portable Microscope of Jackson-Lister form. 

 Prof. Bell : — Leptodora and Argulus. 

 Mr. T. Bolton : — Brachionns Hrreolaris. 



Mr. Crisp :— (1; Geneva Co.'s Microscope Callipers ; (2) Griffith's 

 Tiim-tablo. 



Scr. 2.— Vol-. IV. 3 u 



