Copy letter from Herbert Rix, to M le Secretain, Académie impériale des sciences, St Pétersbourg 'Sir, We beg to apply once more for the following deficiences in our collection of the Memoirs & Bulletins of the St Petersburg Academy, for which we wrote to you in January last. Our deficiences are: - Memoirs - Vol. XLI No.6 [Vol] XLII Nos. 1, 2, 3, 4, 5, 6 Bulletins - Vol. XXXV (= N.S. III) after No 9 [Vol] XXXVI (= N.S. IV) after No. 2 Yours faithfully H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 19 November 1895