Abstract: The work of Dr. Nokolny deals with the problem of feedwator heating by bleeding steam in a new way. Methods previously used have started with a supposition that the steam expanses through an ideal turbine (adiabatic expansion), while in this article, based on such a fact that the difference of enthalpy along the expansion line q=I-I' is roughly constant, different losses tire taken into account. Taking no account of that the conclusions aims reached are mathematically very simple, it agrees with the real process far more better. Beside it, this assumption makes it possible to easily determine the optimum arrangement of the extraction points. Starting with the same assumption, the author has calculated three typical cycles, some other interesting values as well, has analysed the ease of working fluid other than water. All the results have been summed up into series of formulae or diagrams by the help of which calculation could be carried out by simple replacement or reading on the graph. Thus the calculation of mufti-stage regeneration becomes as simple as single-stage.The author points out that the cascade cycles with draincooler heaters are equivalent to those with drain pumps located below each heater from the view point of thermal efficiency. Thus the former cycles could be replaced by the latter without rising in heat rate. But in the case of a large number of heaters (e.g. regeneration is carried out after every stage o f turbine) both the drafncoolors and the drain pumps lose their importance. To reach the top of the improvement of efficiency by moans of' regenerator it might be reasonable to extract steam after every stage of turbine and form a combined heater in which all the stages are consisted in.