| 1 2 3 4 5 6 7 |
| Number | Name | Material type |
| 0001 | Abraholl Hoskyns, an English mineralogist. Manchester. | letters |
| 0002 | Adams Frank D. Montreal. | letters |
| 0003 | Alarra.Geneva. | letter |
| 0004 | Angelescu E. Bucharest. | letter |
| 0005 | Assmann Paul. Publisher of the geologists’ calendar. Berlin. | letter |
| 0006 | Asch W. and Asch D. Berlin. | letters |
| 0007 | Babicka Iosef. Prague. | letters |
| 0008 | Baggiolini Alfred. Velinzon. (Switzerland). | letters |
| 0009 | Bayne - Jones S. New - Haven. | letter |
| 0010 | Balarew D., professor. Sofia. | letter |
| 0011 | Barvir Iindrin. Prague. | letter |
| 0012 | Barich Lyudevit. Zagreb. | letter |
| 0013 | Bachrach E., professor, doctor, Paris. | letters |
| 0014 | Beck B. Freiberg. | letters |
| 0015 | Beckenrumpf I. Munzburg. | letter |
| 0016 | Bohm Iulius. Vienna. | letter |
| 0017 | Bertolio S., Milan. | letters |
| 0018 | Boichev G., professor, doctor, Sofia. | letter |
| 0019 | Bohm Iulius. Paris. | letter |
| 0020 | Borgstrom Leon H. Helsingfors. | letters |
| 0021 | Borel Emile. Paris. Encosure: a rough copy of V. I. Vernadsky’s letter. | letters |
| 0022 | Borell el Mana Joseph. Barcelona. | letter |
| 0023 | Boswell P. C. H., professor, London. Enclosure: a rough copy of V. I. Vernadsky’s letter. | letters |
| 0024 | Bonnet Pierre. Paris. | letter |
| 0025 | Botzong Karl. Heidelberg. | letter |
| 0026 | Braly Adrien, an engineer. Paris. | letter |
| 0027 | Branca, professor, doctor. Berlin. | letter |
| 0028 | Branfield Wilfred, contributor of the Journal "Nature". London. | letter |
| 0029 | Brass K. Prague. | letter |
| 0030 | Brewer A. K. Washington. | letter |
| 0031 | Vernadsky V. I., Academician. Brogger W. S., a mineralogist, professor. | letters |
| 0032 | Brooks Alfred H. Washington. | letter |
| 0033 | Brunet L. Secretary of the editorial office of "Revue General des Sciences". Paris. | letters |
| 0034 | Breinl F. Prague. | letter |
| 0035 | Brian M. A representative of the Journal "Revue General des Sciences". Paris. | letter |
| 0036 | Bucke F. Vienna. | letter |
| 0037 | Burgess C. A. Toronto (Canada). | letter |
| 0038 | Burgeois Leon. A French mineralogist. Letter to Vernadsky V. I. Paris. | letter |
| 0039 | Bourcard Jacques. Paris. | letter |
| 0040 | Bulavant Arlette. Professor, Doctor of Medicine. Lyons. | letters |
| 0041 | Vaquez Т. | business cards |
| 0042 | Waksman Selman A. A microbiologist. New Brunswick. | letters |
| 0043 | Wallner J. Munich. | letters |
| 0044 | Walther Johannes. | letter |
| 0045 | Ward Henry B. Washington. | letter |
| 0046 | Wberry Edgar J. Washington. | letter |
| 0047 | Weyberg Zygmunt. Professor of the Lvov University. Warsaw, Lvov. | letters |
| 0048 | Weikert Karl. A collector of minerals. Berlin. | letters |
| 0049 | Wertenstain L. Warsaw. | letters |
| 0050 | Wildt Rupert. | letter |