- 





The si/'' of drops of liquid falling from an orifice 



face tension; the larger the drops, tl iter thi l 



the number of drops obtained by allowing a liquid to dro 



ard orifice in a given time is counted, we have a mea 



tension. A.ccoun1 tnusl of course also be taken of the sp< 



of the liquid. The instrument used for this purpo 



stalagmometer Fi'_ r . I s . Another method depends <>n the 



the heighl to which a fluid rises in ;i capillary tub< 



Burface tension (and inversely on the diameter of th< 



difference in the heights to which two liquids rise in capillary tu 



known bore permits us to compare their Burl 



is known for tine of the solutions, ii can b ermined 



Besides existing between liquid and air, Burface tension a 

 the interface between two immiscible Liquids, and at tl 



l-'ili. IS. — Tra;;' 

 drops formed in 

 one for bl I and other viscous fl 



pended Bolid particles and liquid, as in colloidal solutions 



we have Been, the Burfac< interface is enorn I in 



these solutions, a very greal Burfai rg) is present, foi th [ual 



to the surface tension multiplied by the Burface 



ADSORPTION 



The Burface tension between liquid and ranic 



Bubstances are dissolved in the liquid, bul is Blightlj i when i: 



Btanic salts are dissolved The dc 



-ding to the organic Bubstance dissolved. I with 



bile salts, upon which fad the well-known M 

 of bile in urine is based Bet 



