Corrections

In my article (N. A. Kosareva, “On the disturbance of carbohydrate metabolism in carp fishes during invasions by Ligula and Digramma”), published in DAN, vol. 139, no. 2, 1961, the caption to Fig. 1, instead of 0.1; 0.2; 0.3; 0.4; 0.05, should read: 0.4; 0.3; 0.2; 0.1; 0.05.

N. A. Kosareva

In the article by B. N. Stepanenko and O. G. Serdyuk, “Study of the kinetics of the acid hydrolysis of certain phenyl- and chlorophenyl glycosides,” published in DAN, vol. 139, no. 5, 1961, on p. 1133, in Table 3, column 3, fourth line from the bottom, instead of the printed \((4.51 \pm 0.070)\cdot 10^{-3}\), it should read \((4.51 \pm 0.070)\cdot 10^{-2}\).

In my article (M. M. Glukhov, “On a structure-theoretic theorem of the type of Grushko’s theorem”), published in DAN, vol. 138, no. 5, 1961, in the proof of the theorem on the minimal number of generating elements of a free product of substructures, the fact is used without justification that for every element \(u\) of the substructures there exist elements \(v_1\) and \(v_2\) such that \(v_1\) covers \(u\), and \(u\) covers \(v_2\). Therefore, the theorem may be regarded as proved only for the case in which the free factors of the structure do indeed possess the indicated property.

M. M. Glukhov