HI 



NOVELTIES. 



Wright's Microscopic Collecting Bottle. — This convenient 

 contrivance has just been introduced by Mr. Wriglit, of 59, Sbep- 

 herdess-walk, City-road, for the purpose of collecting and retaining 

 the minute objects which may be floating, sparingly or otherwise, 

 in water obtained by the dipping bottle. It consists of a bottle 

 with a moveable cap, in which is cemented 

 two tubes with screw tops. One of 

 these projects an inch or more above 

 the other, which is prolonged a little 

 downwards, and has its mouth enlarged 

 into a trumpet or funnel shape. Across 

 the mouth of this a piece of fine muslin, 

 or other more suitable porous material, 

 is stretched. The loose funnel shown is placed in the mouth of the 

 higher tube, and the water containing the organisms which it is 

 wished to retain is poured into it. As soon as the bottle is full, the 

 water rises through the porous material placed across the lower end 

 of the inner tube, and runs off, leaving behind it and in the bottle the 

 diatoms, desmids, entomostraca, &c., which may have been floating 

 therein. Any quantity of water may thus be deprived of the 

 minute objects floating in it, without the troublesome, imperfect, 

 and destructive process of first filtering through a piece of muslin, 

 and then reversing the filtering material in the mouth of the bottle, 

 to detach the deposit. 



For collecting larger objects, or placing plants, &c., in it, the cap 

 of the bottle is made to take off. 



Fiddian's New Eclipse Metallic Lamp Chimney and 

 Shade. — Under the above name, Mr. Collins, of Gt. Titchfield-street, 

 has introduced a substitute for the glass lamp chimneys, which we 

 know to our vexation to be so easily fractured, at the very time 

 when they are most wanted. It consists of a copper chimney, of 

 the same shape as the ordinary glass ones, with a two inch aperture 

 cut in the front of the globular portion. Into this opening is fitted 

 a white or blue glass, with parallel surfaces. The inside is lined 

 with white, so that an intense and pure light, the rays of which are 

 parallel, is obtained. Perfect shade from all extraneous light from 

 the eye of the observer, and freedom from the annoyance of broken 

 glass chimneys, are among the advantages claimed for this con- 

 trivance. 



