898 Gleanings from the International Exhibition. 



appear to be the largest horns on record. The antlers shed by 

 the Wapite deer in the Zoological Society's garden rarely reach half 

 the weight above stated. 



MICROSCOPICAL SOCIETY, May 14ft. 



Messes. Smith, Beck, and Beck, exhibited an instrument called 

 the " Museum Microscope." It consists of a large cylinder of brass, 

 resting on a cast-iron frame, and surmounted by a microscope 

 body. The great cylinder contains a series of small cylinders, each 

 carrying numerous slides, exceeding five hundred in all. One slide 

 cylinder after another is brought under the microscope ; and by 

 turning a milled head the objects are presented in succession — the 

 name of each being conspicuously shown. The microscope is fur- 

 nished with three powers, any one of which may be brought into 

 action by a simple mechanism. The instrument, which is only 

 adapted for transparent objects, presents great advantages for 

 public exhibitions, as its movements are easily understood, and there 

 is little chance of unskilful observers doing any harm to the objects 

 or the machinery. 



Mr. Webb presented to the Society a slide containing the first 

 chapter of the Gospel of St. John, written by himself with a machine 

 of his own invention, in the 500th of an inch. Mr. Ross presented 

 a fine bust of his late father, 



Dr. Leary read a paper on some new flukes. Mr. Smith de- 

 scribed his method of taking micro-stereographic drawings ; and a 

 paper was communicated by Dr. Maddox on some living organisms 

 found in a nitrate of silver bath used for photographic purposes. 

 They appeared to be mites, bearing a strong resemblance to the 

 Acarus Grossii. From the circumstances detailed their appearance 

 could not be accounted for, nor was it at all clear what they could 

 find to live upon. The nitrate of silver was in the proportion of 

 forty grains to the ounce ; a sheet of paper was usually laid over 

 the vessel and the cover pressed down. 



GLEANINGS FROM THE INTERNATIONAL EXHIBITION. 



The duties of the writer of the following short paragraphs necessitates 

 his careful examination of almost every article in the raw material 

 and scientific classes at the International Exhibition. He proposes 

 to utilize the advantages he possesses by bringing before the readers 

 of the Intellectual Observer a series of notes on those objects of 

 scientific interest that may be most worthy of notice, or that from 

 the magnitude of the collection might be liable to escape observation. 

 The present series is confined to the first four classes, those in- 

 cluding -what are termed raw materials. All the objects alluded to 

 are contained in the eastern annexe or its approaches. 



Aluminium Bronze. — The applications of aluminium and alu- 



