4to. [30.4 x 23 cm], parts I and II.
2 parts in one vol. 1-26 pp.; 27-34 pp., (the whole issue paginated [ii] 96 ); title with old stamp in Russian and shelfmark, crossed-through, some very faint marginal waterstaining, a very good copy in original printed wrappers, ‘Uchenya Zapiski... 1852’ on front wrapper within an ornamental border, wrappers worn.
Very rare first edition of Lobachevsky’s last work on analysis, a treatise on the values of certain defined integrals, along with an examination of the Gamma function.
* Kagan 13; Engel 18. Not in DSB. For Lobachevsky’s biography, see the previous entry.