1 The significance of the two papers by B. V. Birjukov on Frege within
Soviet studies on logic and its history is indicated by G. 1. Ruzavin
and P. V. Tavanec in their article 'Fundamental Periods in the Evolution
of Formal Logic' in the collective volume Philo- 2 sophical Questions of
Contemporary Formal Logic. There (page 18) while the organization of
"systematic studies on history of logic" is proposed as "one of the
fundamental tasks for Marxist logicians", reference is made to a series
of recent publications which suggest that such a task is already being
accomplished. These are A. S. 3 Axmanov's The Logical Doctrine of
Aristotle, v. F. Asmus' 'Criticism of the Bourgeois Idealist Logical
Doctrine in the Era of Imperia- lism'4, in Voprosy Logiki (Logical
Questions), P. S. Popov's A 5 History of Modern Logic and B. V.
Birjukov's 'G. Frege's Theory of Sense' in the collective work
Applications of Logic in Science and 6 Technology. In this book,
published by the Academy of Sciences of the USSR, Moscow, in a printing
of 10 000 copies, Birjukov's article fills 56 pages. Before this one,
however, Birjukov published another study on Frege: 'On Frege's Works on
Philosophical Problems of Mathe- matics' in the collective volume
Philosophical Questions of Natural Sciences 7, published in a printing
of 8000 copies by the Moscow University Press. This article fills 45
pages.