362 



Molecular Effects of Liquids. 



No. 



52 674. 1 : 10. 



52 676 A. 



1 : 4. 



52 676B. 



1 : 1. 





52 679. 1 : 5. 



52 680. 1 : 5. 



52 682. 1 : 2. 



52,674. Apparatus after Eebenstorff, for reducing the Surface Tension of Water by Ether, 

 Figure (Ztschr. f. d. phys. u. chem. U. 19, 1906, p. 27, Fig. 3) 0. 



The apparatus consists of a glass bell with nozzle seal, a glass dish, a stand for holding the bell, 

 a weighted compression bell in a glass cylinder, a pipette for ether and a 30 cm length of rubber tubing. 



S. (1. 



13. 



* 52,675. Dropping Apparatus, after Friedr. C. G. Muller, for showing Surface Tension (M. T., 



Fig. 78), suitable for the Projection Lantern 



The liquid used for dropping is coloured colza oil in a mixture of water and alcohol, of such density 

 that the drops fall slowly. 



52,676. Dropping Pipette, for determining the Constant of Capillarity, Figures A and B 



(W. u. E. phys. Prakt., Figs. 78 and 79) 



Fig. B shows the lower smoothly polished end of the pipette with drop of liquid hanging on 

 the end. 



* 52,677. Wide Tube and Capillary Tube, for capillary depression of non-wetting liquids (W. 



D., Fig. 132 [120]) 



* 52,678. -- idem, with short Capillary Limb, for demonstrating Surface Tension (M. T., 



Fig. 79) 



* 52,679. 2 Wide Tubes with Capillary Tubes, for projection, F i g u r e, on stand, for demon- 



strating Capillary Ascension of wetting and the Capillary Depression of non-wetting 

 liquids, e. g. coloured water and mercury 



* 52, 680. Wide Tube with 5 Communicating Capillary Tubes, Fign re, for the objective de- 



monstration of the capillary ascension of wetting liquids or the capillary depression of 

 non-wetting liquids 



0. 6. 



0. 2. (> 



0. I. 



0. 3. 





0. S. d 



0. (i. u 



# Can be used with the Projection Apparatus. 



(1. 4984, 82S, 3650, 

 3790, 829, 830. 



