GEOCHEMISTRY

Iu. I. Goncharov. Potassium in the waters of the Lower Permian halogen strata of the Donetz Basin — 426

PALEONTOLOGY

A. G. Vologdin, K. B. Cordé. Certain species of ancient Cyanophyta and their coenoses — 429

GENETICS

V. I. Agol, E. A. Tol’skaia, M. K. Voroshilova. Pleiotropy of guanidine mutations of the poliomyelitis virus — 433

BIOPHYSICS

I. D. Alexandrov. The correlation of the two kinds of postradiational destruction of cells in the marrow of mice either protected or unprotected by mexamine — 437

E. J. Graevskii, M. M. Konstantinova, O. M. Sokolova, A. G. Tarasenko. On the general mechanism of radiodefensory action of aminothiols and anoxia — 441

M. I. Ianushevskaia. The effect produced by intestine screening on the restoration of haemopoiesis in irradiated mice — 445

BIOCHEMISTRY

R. A. Zviagil’skaia, A. V. Kotel’nikova. The efficiency of oxidation phosphorylation in yeast mitochondria — 448

N. I. Shapiro, I. V. Moskvicheva. On the likeness of molecular weights of the diphtheric toxin and anatoxin according to data of gel-filtration — 451

PLANT PHYSIOLOGY

M. I. Budyko, L. S. Gandin. A contribution to the theory of photosynthesis taking place in the layer of the vegetative cover — 454

O. N. Kulaeva, N. L. Kliachko. The effect of quinines on the synthesis of protein in leaves — 458

PHYSIOLOGY

I. L. Vaisfeld, N. I. Grashchenkov, G. N. Kassil’. Histamine, and inactivating systems in the case of acute cranio-cerebral trauma — 462

V. L. Lukianenko. A comparative description of the humoral factors of natural immunity in Acepenseridae — 466

I. V. Chudakova, O. M. Bocharova-Messner. Variation in functional and structural characters of wing-muscles in the ontogeny of Acheta domestica L. — 496

ERRATUM

In the article by F. S. Rofe-Beketov, “A criterion for the finiteness of the number of discrete levels introduced into gaps of the continuous spectrum by perturbations of a periodic potential,” published in DAN, vol. 156, no. 3, 1964, on p. 516, line 12 from the bottom, where it is printed
\((1 + |\sqrt{\lambda}|\,\varphi(1,\lambda)|\), it should read
\((1 + |\sqrt{\lambda}|)\,|\varphi(1,\lambda)|\); on p. 516, line 3 from the bottom, where it is printed
\(\displaystyle \int_{-\infty}^{\infty}\), it should read
\(\displaystyle \int_{-\infty}^{x}\).

In the article by F. S. Rofe-Beketov, “On expansion in eigenfunctions of systems with a summable potential,” published in DAN, vol. 156, no. 5, 1964, on p. 1031, line 12, where it is printed \(x = \|P(x)\|\), it should read \(x \cdot \|P(x)\|\); p. 1031, line 19 from the bottom, where it is printed
\(\displaystyle \int_{0}^{\infty}\|P(x)\|\,dx\), it should read
\(\displaystyle \int_{1}^{\infty}\|P(x)\|\,dx\).

T-11483. Signed for printing 2/IX-1965. Print run 4315 copies. Order 2762.
Paper size \(70 \times 108^{1/16}\). Printed sheets \(20.3 + 2\) inserts. Paper sheets \(7\frac{1}{4}\). Publisher’s accounting sheets 19.2.
2nd printing house of the publishing house “Nauka,” Moscow, Shubinsky Lane, 10.