BIOPHYSICS

V. V. Popov. Provocation of a radiation cataract by way of traumatization of irradiated crystalline lense . . . 441

M. F. Popova. A biochemical analysis of the reaction of muscular tissue to ray injury under conditions of mechanic trauma . . . 444

E. I. Preobrazhenskaia, N. V. Timofeev-Resovskii. On the correlation between germination and survival in different species of cultivated plants following the exposure of their seeds to doses of different intensity of γ-rays of Co⁶⁰ . . . 448

BIOCHEMISTRY

A. V. Kotel’nikova, V. V. Solomatina. A study of certain transformations of nucleotides in aqueous extracts of rabbit kidney and spleen . . . 452

A. A. Krasnovskii, Iu. E. Erokhin, Khun Iui-zun. Fluorescence of aggregated forms of bacteriochlorophyll, bacterioviridin and chlorophyll connected with the state of pigments in photosynthetising organisms . . . 456

A. A. Shlyk, G. N. Nikolaeva. Metabolic heterogeneity of chlorophyll in plants . . . 460

PLANT MORPHOLOGY

A. N. Sladkov. On spore tetrades in Pteridophyta . . . 464

PLANT PHYSIOLOGY

I. E. Rogalev. On the gradient of concentration of chlorine and sulphur S³⁵ in plants according to their development phases . . . 467

EVOLUTIONAL MORPHOLOGY

A. A. Panov. The mode of cell-division reproduction in the central nervous system of the nymph of Cryllus domesticus L. . . . 471

PHYSIOLOGY

V. V. Boriskin, P. V. Oblapenko, V. V. Rol’nik, B. M. Savin. On the possibility of the development of an animal organism under conditions of air nitrogen substituted by helium . . . 475

L. A. Galkina. Fertilization and development of eggs of Clupea harengus. P. n. maris — albi Berg (var. a) in waters of different salinity . . . 479

L. I. Irzhak. The amount of blood and hemoglobin, and certain peculiar features of hemopoiesis in new-born kittens . . . 483

Iu. A. Petrovich, R. P. Podorozhnaia. The excretion of glycine-C¹⁴ and methionine S³⁵ by salivary glands in the case of conditioned or unconditioned secretion . . . 478

PARASITOLOGY

A. K. Jõgiste, V. M. Gusev. On toxoplasmosis in wild fowl in the USSR . . . 491

Corrections

In my article (L. G. Mikhailov, “On a Boundary-Value Problem of Linear Coupling”), published in DAN, vol. 139, no. 2, 1961, on p. 294, in Theorem 1, the condition \(|a(t)| > |b(t)|\) was omitted, and on p. 297, line 8, in the expression \(G(t)\), instead of \([b_1(t) - b_2(t)]\) it should be \([b_1(t) - a_2(t)]\).

L. G. Mikhailov

In the article by V. V. Petrov, “On Integral Theorems for Large Deviations,” published in DAN, vol. 138, no. 4, 1961, the following corrections must be made:

On p. 779, line 7, printed \(X_1, X_2\), should read \(X_1, X_2, \ldots\)

On p. 779, line 13 from the bottom, printed

\[ \frac{s}{2(s+3)} < \alpha, \]

should read

\[ \frac{s}{2(s+2)} < \alpha. \]

T-02582. Signed for printing 19/III-1962. Print run 5475 copies. Order 34.
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