The important and fundamental works of Quincke, Hardy, McC. Lewis, Morgan, and lately Harkins and his collaborators have thrown much light on the behavior of liquids at interfaces, and it may seem hardly necessary to develop a new method in order to study this phenomenon, as those existing have reached a high degree of accuracy. However, if the values of the interfacial tensions of pure liquids...

An attempt to find evidence, through the study of surface tension, using the du Noüy tensiometer, of a denaturing effect of the precipitin reaction upon either the antigen or the immune serum yielded entirely negative results.

The bubble pressure tensiometer BPA-1P is a new development by SINTERFACE based on more than 10 years of experience in bubble pressure techniques, for example the MPT1 and MPT2 sold by LAUDA. Many new instrumental details have been published recently, such as the determination of bubble time characteristics, the optimisation of the aerodynamic system, as well as the options to reach extremely s...