2892 Entomological Club. 



these animalcules the next evening, his attention was attracted to one which had 

 another animalcule of the class Rotifera, swimming freely about within it, without 

 either impeding the motions of the Volvox, or having its own motions interfered 

 with in any way whatever. In addition to the usual granular masses adhering 

 to the inner surface of the Volvox, there was a gelatinous mass in which ciliary 

 movement was suspected : as these appearances seemed to he rather unusual, care was 

 taken to preserve matters in statu quo, and the next morning not only was the first ani- 

 malcule swimming about with great vigour, but the gelatinous mass had opened out 

 with a second of the same kind, which swam about with the utmost activity. They 

 both appeared at times to be feeding upon the green granules so plentifully scattered 

 over the inner surface of the Volvox, whose motions were this day exceedingly slug- 

 gish. The next morning matters remained much the same, with the exception that 

 little or no motion could be perceived in the Volvox, and the first and largest animal- 

 cule was rather sluggish. The next day the animalcules had contracted themselves 

 into gelatinous lumps, and only once during the day was any sign of motion seen, and 

 that in only one of them. In the evening, as they were evidently dead, an attempt 

 was made to preserve this curious appearance, by evaporating the fluid and thus dry- 

 ing them ; this, however, only partially succeeded. The larger of the parasitic ani- 

 malcules was about one-third of the diameter of the Volvox in length, and possibly 

 about one-twelfth in breadth ; and by the most careful examination no opening could 

 be detected by which they could have been introduced into the Volvox. Appearances 

 of this kind have been figured by Ehrenberg, but as they are of rather rare occurrence, 

 the author considered a well-recorded observation would not be without interest to the 

 Society, particularly as by inquiry he could not find that any one else who had por- 

 tions of the same water had seen anything similar, nor could be find any other speci- 

 men of Volvox infested in like manner in the remaining portion of the water in his 

 possession. 



Mr. Wenham read a short paper, being a continuation of a former paper by that 

 gentleman, " On a Mode of Applying Oblique Reflected Light." 



Mr. Shadbolt read a paper, describing a piece of apparatus for producing ob- 

 lique reflected light, differing in construction from that proposed by Mr. Wenham, 

 and in his opinion, free from some of the objections which might be made to that 

 mode of applying oblique reflected light. — /. W. 



Entomological Club. 



Anniversary Meeting, July 3rd, 1850. 



The following members and visitors were present : — Messrs. Bevington,Bowerbank, 

 Christy, De la Rue, Gratton, Hart, Hutchinson, Keddell, Legg, Luxford, Marchant, 

 M. Marshall, M. Marshall, Jun., Mills, Newman, Powle, S. S. Saunders, Smith, 

 Spence, Stainton, S. Stevens, Van Voorst, Wade, Walton, Walton, Jun., and 

 Woodward. 



After a delightful day spent in the woods and fields, the party dined together at the 

 Bull Inn, Mr. Bowerbank presiding. — E. N. 



