The Mathematical Repository and the New Series of the Mathematical Repository are mathematics journals edited by Thomas Leybourn and printed by W. Glendinning, in London. The Mathematical Repository was a journal of mathematics which published three volumes from 1799-1804. The New Series of the Mathematical Repository was a continuation of The Mathematical Repository, published from 1806-1833.

The Repository, in both incarnations, was a journal of popular mathematics. Each volume of the __New Series__ consisted of three parts: 120 mathematical questions; original essays; and "Mathematical Memoirs Extracted From Works of Eminence".The New Series began with ten large plates in the first volume, the number and size of which was greatly reduced by the third volume, and completely eliminated by the fourth volume, where there are not any plates larger than a full page. While __The Repository__ was popular journal, it contains many articles by significant individuals. The following are general descriptions of each volume.

__The Mathematical Repository__, 1799-1804, printed by W. Glendinning, London, 3 v. xxxiii fold. pl. (diagrs.) 19 cm. (I have not been able to find any additional information about The Mathematical Repository. Additional information would be appreciated and will be added.)

The contents of the volumes of the __New Series of the Mathematical Repository__ are as follows:

- v. 1. 1806, 256 + 56 + 78 p. 10 plates. Original essays by James Ivory, Jac. Rube, Benjamin Gompertz, Mark Noble, James Cunliffe, and Astronomicus. Articles from other journals by I. L. LaGrange and John Dawson,.
- v. 2. ?
- v, 3. 1814, 206 + 88 + 46 + 38 p. 6 plates. Original essays by John Gough, Thomas Knight, A. B., James Cunliffe, J. L., Mark Noble, P. Barlow, J. F. W. Herschel, John Bransby, and Thomas White. Articles from other journals by Legendre and Euler.
- v. 4. 1819, 168 + 136 + 76 p. Articles by R. J. Dishneagh, James Adams, Thomas White, P. Barlow, Mark Noble, W. G. Horner, John Bransby, Thomas Knight and James Cunliffe. Also "Cambridge Problems"
- v. 5. 1830, Contents includes Mathematical Questions by Charles Babbage.
- v. 6. 1833

__The Mathematical Repository__ is, for its time, a significant publication. It is presently very rare, and not normally found outside libraries. It should not be confused with The Gentleman's Diary, or the Mathematical Repository, published in London from 1741-1840 (100 volumes).

Sources:

The following library catalogs:

British Library (www.bl.uk)

Library of Congress (www.loc.gov)

Oxford University Library Catalog (library.ox.ac.uk)

University of California Libraries Catalog (www.melvyl.ucop.edu)

University of Texas, Austin Library (www.utexas.edu)

Other Sources:

http://www.ex.ac.uk/BABBAGE/publish.html

http://www-groups.dcs.st-and.ac.uk/~history/References/Spence.html

http://www.pacificbook.com/catalogs/curcat174-1.html

http://www.mscs.mu.edu/~johns/websites/fundamental.html

http://jwilson.coe.uga.edu/EMT668/EMT668.Folders.F97/Anderson/geometry/geometry1project/historyofninepointcircle/history.html

Also volumes 1, 3, 4 of the __New Series of the Mathematical Repository__, in my possession.