Lossky, Nikolai. Fundamental Questions of Epistemology (Osnovnye voprosy gnoseologii). First edition, 1919. In Russian.

Лосский, Н. [Николай Онуфриевич]. Основные вопросы гносеологии : сборник статей. Первое издание.
Книгоиздательство «Наука и Школа», серия «Введение в науку» (философская серия).
Петроград : Типография «Тогблат», 1919. 248 с.
Переплёт (более поздний, владельческий): картон с тканевым корешком; на крышки наклеены подлинные передняя и задняя издательские обложки. Обычный формат.
Обложки потёртые: пятна, мелкие утраты и надрывы по краям. Блок хороший: бумага возрастная, потемневшая, текст полный.
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Lossky, Nikolai. Fundamental Questions of Epistemology: A Collection of Essays. First edition.
"Nauka i Shkola" ("Science and School") Publishing House, series "Introduction to Science" (philosophical series).
Petrograd: Togblat Press, 1919. 248 pp.
Binding (later, owner's rebinding): boards with cloth spine; the original front and rear publisher's wrappers mounted onto the covers. Standard format.
Wrappers worn: staining, small losses and tears at the edges. Text block good: age-toned paper, text complete.

Nikolai Onufrievich Lossky (1870-1965) was one of the most significant Russian philosophers of the early twentieth century and the principal architect of "intuitivism," an epistemological theory holding that the mind apprehends reality directly rather than through representations, developed across a series of works beginning with his 1906 "Обоснование интуитивизма." This 1919 Petrograd collection gathers Lossky's key essays on the theory of knowledge, most previously scattered across leading philosophical periodicals of 1907-1917 - "Вопросы философии и психологии," "Логос," "Психологическое обозрение," and others - with two essays, "Гносеологическое введение в логику" (An Epistemological Introduction to Logic) and "Сенсуалистический реализм Маха" (Mach's Sensualist Realism), appearing here for the first time. The volume includes Lossky's extended critical engagement with Semyon Frank's major 1915 study "Предмет знания," an essay on the philosophy of Immanuel Schuppe, and his treatment of the immortality of the soul as a problem of epistemology, together forming one of the fullest single-volume statements of his epistemological position prior to his 1922 expulsion from Soviet Russia aboard the "Philosophers' Ship," alongside Berdyaev, Frank, Bulgakov, and other leading figures of Russian religious and idealist philosophy. Issued by the Petrograd house "Nauka i Shkola" as part of its ambitious "Introduction to Science" philosophical series - whose announced list, printed on the rear wrapper, includes contributions by Radlov, Karsavin, Kareev, Vernadsky, and Rostovtsev - the book documents the last flowering of independent philosophical publishing in Russia before it was extinguished under Soviet rule. This copy has at some later date been rebound in boards, with the original printed wrappers preserved and mounted to the new covers.