GENETICS

N. N. Zoz. Inheritance of variations called forth by chemical mutagens in wheat-couch grass hybrids . . . 187

ECOLOGY

T. A. Djamucova. A study of functional variations of muscular tissue in the mollusk Neptunea eulimata Dall exposed to prolonged thermal treatment . . . 189

MICROBIOLOGY

Iu. I. Sorokin. Vertical distribution of saprophytic bacteria within the water layers of the central part of the Pacific Ocean . . . 192

BIOPHYSICS

E. J. Graevskii, M. M. Konstantinova. Anti-radio efficiency of protective substances as dependent on the content of oxygen in inhaled air and tissues . . . 195
A. N. Studitskii, M. F. Popova. Biological protection of skeletal-muscular tissue against injury due to ionizing radiation . . . 198
L. A. Tumerman, A. B. Rubin. Efficiency of the primary process of light energy conversion in the course of photosynthesis as affected by temperature . . . 202

BIOCHEMISTRY

N. S. Gel’man, I. G. Zhukova, N. I. Zaitseva. Flavin containing nucleoproteids in the cytoplasmic membrane of Micrococcus lysodeicticus . . . 206
M. F. Gulyi, R. G. Degtiar. Purification and crystallization of glucose-oxidase from the fungus Penicillium vitale Pidoplichco Bilai . . . 209
D. V. Lipsitz, K. E. Kruglikova, M. S. Postnikova, N. M. Emanuil’. Suppression of development of plant tumors (potato cancer) by inhibitors of radical processes . . . 212
S. E. Severin, P. L. Vulfson, L. L. Trandafilova. Content of carnozin in different points of a frog muscle . . . 215
A. S. Tikhonenko, V. F. Poglazov. Adenosine triphosphatic activity of different phages . . . 218

PLANT PHYSIOLOGY

M. J. Shkol’nik, A. N. Maevskaia. The mechanism of the effect produced by boron on the biosynthesis of nucleic acids. The effect of boron on the energy metabolism . . . 222

PHYSIOLOGY

B. N. Manukhin, G. A. Buznikov. The effect of “inhibitory substances” of mollusk embryos on isolated organs of vertebrates . . . 225

CORRECTIONS

In the article by A. A. Ponomarenko, “A Study of the Kinetics of the Reaction of Direct Replacement of the Nitro Group by Chlorine in Nitrobenzene and m-Chloronitrobenzene under the Action of Carbon Tetrachloride,” published in DAN, vol. 136, No. 3, 1961, on p. 626, line 16 from the bottom, it should read:

\[ \mathrm{COCl}_2 \rightleftharpoons \mathrm{CO} + \mathrm{Cl}_2 \quad \text{and} \quad \mathrm{COCl}_2 \rightleftharpoons \mathrm{CO} + 2\mathrm{Cl}. \]

In the article by G. P. Gal’chenko, B. I. Timofeeva, and S. M. Skuratov, “Determination of the Heat of Formation of Decaborane,” published in DAN, vol. 142, No. 5, 1962, on p. 1078, in line 21, instead of the printed \(12.14 \pm 0.03^\circ\), it should be \(21.14 \pm 0.03^\circ\).

T-06375. Signed for printing 5/VII-62. Print run 5510 copies. Order 671.
Paper format \(70 \times 108^{1/16}\). Printed sheets \(19.5 + 3\) inserts. Paper sheets \(7 \tfrac{1}{4}\). Publisher’s sheets 20.9.
2nd Printing House of the Publishing House of the Academy of Sciences of the USSR. Moscow, Shubinskii Lane, 10.