CHEMICAL TECHNOLOGY

L. N. Rashkovich, V. P. Varlamov, N. K. Sudina. The kinetics of interaction between Ca(OH)\(_2\) and quartz under conditions of hydrothermal treatment, as influenced by the composition of the initial mixture . . . . . . . 685

MICROBIOLOGY

L. G. Azova. On the possible cultivation of Clostridium butyricum on synthetic media . . . . . . . 689

V. N. Shaposhnikov, T. V. Finogenova. The role of iron concentration in the synthesis of flavins in Nocordia erythropolis . . . . . . . 692

BIOPHYSICS

N. A. Mal’tsev. On the structural temperature of living tissues . . . . . . . 695

BIOCHEMISTRY

N. G. Doman, R. J. Shkol’nik, Z. A. Terentieva. A direct demonstration of the participation of phosphoglyceric acid in the reducing photosynthetic cycle of carbon . . . . . . . 698

I. M. Mosolova, N. M. Sisakian. On the effect produced by light upon the oxidation of succinate by mitochondria of green and etiolated pea-plant . . . . . . . 702

PLANT PHYSIOLOGY

Van Sha-shen. The rate of ascending flow in arboreal species . . . . . . . 706

T. V. Daletskaia. On the role of β-indolylacetic acid in seed dormancy . . . . . . . 708

I. A. Shul’gin, L. A. Khodorenko. The influence of the spectral composition and intensity of the radiant energy on the chlorophyll content with reference to the length of the photoperiods . . . . . . . 712

EVOLUTIONAL MORPHOLOGY

A. A. Bronstein. Vital observations of hair movement of olfactory cells . . . 715

PHYSIOLOGY

E. B. Babsky, A. S. Belousov, I. I. Malkiman, A. P. Nesterova, A. S. Sorin. Radiotelemetry in the study of the evacuatory function of the stomach . . . 719

CORRECTIONS

In my article (V. E. Voskresenskii, “Functor-spaces of the group of ideals of an algebraic group and cohomology of bundles”), published in DAN, vol. 150, no. 3, 1963, the connection between the group \(G\) and the splitting field of Theorem 1 and 2 should be understood under the condition that \(G\) is rational over \(k\). This condition, apparently, is not necessary. Further, on p. 460, line 6 from the bottom, instead of \(i_1 : H'(X, A) \to H'(X, B)\), one should read \(p_1 : H'(X, B) \to H^1(X, C)\).

V. E. Voskresenskii

In my article (G. Sh. Rubinshtein, Dual Extremal Problems), published in DAN, vol. 152, no. 2, 1963, the footnote on p. 289 is inaccurate; for its correction, points that are external with respect to a convex set \(A\) should be understood as points not belonging to the \((*)\)-closure of \(A\). A convex set \(A\) is called \((*)\)-closed if it contains all points \(a\) such that, for some \(l \in E\), \(t > 0\), the set \(\{a + \tau l : 0 < \tau < t\} \subset A\).

G. Sh. Rubinshtein