45, CORNHILL, E.G., AND 122, REGENT STREET, W., LONDON. 539 



3236 COLLODION BOTTLES POURERS, AND FILTERS. 



The Collodion Bottles (figs. 3236 to 3237) can be used either for mixing the plain 

 Collodion with the lodiser, or for receiving the turbid portion of Collodion when it 

 has been poured over the plate several times ; from the shape of the bottle, it allows 

 Jill particles to subside at the bottom, and enables the operator, after a short time, 

 to pour away the clear Collodion within a very short distance of the deposit, without 

 disturbing it. 



3237 Collodion Bottles or Pourer : 



(Fig. 3237) Plain 2 oz. 4 oz. 



Price . ... 2s. 3s. 



(Fig. 3237*) Graduated 2 oz. 4 oz. 



Price . ... 3s. 4s. 



3237* Cometless Collodion Bottle (fig. 3237f). The tube in the neck of this bottle 

 can be removed and cleaned as frequently as used, and so particles of dry 

 Collodion prevented from being carried on to the plate . .040 



3237f Collodion Filters (fig. 3237+) . . . . 5s. 6d. 7 6 10 6 



3238 Drop Bottles, Improved, for adding small quantities of Nitrate of Silver 



Solution to developing or other solutions (see pages 192 and 502). 



6 oz. 



3s. 6d. 



6 oz. 



4s. 6d. 



3243. 



Fm. 3246. 



FIG. 3239. 



Each. 



FIG. 3249. 

 Each. 

 s. d. 



3240 

 3241 



3242 



3243 

 3244 

 3245 

 3246 



3247 



3248 



3249 

 3250 



026 



s. d. 



Developing Glasses, nest of three, for pouring develop- 

 ing solution on to plates (fig. 3239) . , . . 040 



Ditto Graduated 056 



Hydrometers, for testing the Specific Gravity of Acids, 



Alcohol, ^Ether, &c (see pages 176 to 195 ) 



Argentometer, for testing strength of Silver Bath, in 



case 



Ditto with glass solution Tube in case (fig. 3243) . 



Dropping Tubes or Pipettes 



Dropping Tubes, Graduated . . . .Is. 6d. 

 Glass Graduated Measures, accurately divided into 



Minims, Drachms, and Ounces ; of either Cylindrical 



or Conical form, see page 384. 

 Scales and Weights see ante, pp. 396, 405, 406, 408. 

 Filter Rings, or Supports, as on top of fig 3246, very 



useful for filtering small quantities without a funnel 

 Glass Syringes, for taking up small quanties of Liquids, Glass Spirit Lamps 



Glass Funnels, Glass Stirring Rods, see pages 381, 390, and 391. 

 Thermometers, Chemical and various, see pages 152 to 175. 



006 010 



