## Contents of Volume 47, Number 6

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- Miscellaneous front pages, Bull. Amer. Math. Soc., Volume 47, Number 6 (1941)
- Bull. Amer. Math. Soc.
**47**(1941)

- Miscellaneous back pages, Bull. Amer. Math. Soc., Volume 47, Number 6 (1941)
- Bull. Amer. Math. Soc.
**47**(1941)

- Some recent developments in the theory of continued fractions
- H. S. Wall PDF
- Bull. Amer. Math. Soc.
**47**(1941), 405-423

- On biorthogonal matrices
- Y. K. Wong PDF
- Bull. Amer. Math. Soc.
**47**(1941), 424-431

- On spherical cycles
- Samuel Eilenberg PDF
- Bull. Amer. Math. Soc.
**47**(1941), 432-434

- A new concept in distance geometry with applications to spherical subsets
- Leonard M. Blumenthal PDF
- Bull. Amer. Math. Soc.
**47**(1941), 435-443

- The finite differences of polygenic functions
- Rufus P. Isaacs PDF
- Bull. Amer. Math. Soc.
**47**(1941), 444-448

- On the asymptotic lines of a ruled surface
- Guido Fubini PDF
- Bull. Amer. Math. Soc.
**47**(1941), 448-451

- A sequence of limit tests for the convergence of series
- Margaret Martin PDF
- Bull. Amer. Math. Soc.
**47**(1941), 452-457

- The double cosets of a finite group
- J. S. Frame PDF
- Bull. Amer. Math. Soc.
**47**(1941), 458-467

- Conditions for the continuity of arc-preserving transformations
- D. W. Hall and W. T. Puckett Jr. PDF
- Bull. Amer. Math. Soc.
**47**(1941), 468-475

- A note on subgeometries of projective geometry as the theories of tensors
- T. L. Wade PDF
- Bull. Amer. Math. Soc.
**47**(1941), 475-478

- A note on quasi-metric spaces
- George E. Albert PDF
- Bull. Amer. Math. Soc.
**47**(1941), 479-482

- Cesàro summability of a class of series
- M. S. Macphail PDF
- Bull. Amer. Math. Soc.
**47**(1941), 483-487

- A characterization of the group of homographic transformations
- P. O. Bell PDF
- Bull. Amer. Math. Soc.
**47**(1941), 488-493

- On the mapping of quadratic forms
- Lloyd L. Dines PDF
- Bull. Amer. Math. Soc.
**47**(1941), 494-498

- On the representations, $N_3 \left ( {n^2 } \right )$
- C. D. Olds PDF
- Bull. Amer. Math. Soc.
**47**(1941), 499-503

- Some more uniformly convex spaces
- Mahlon M. Day PDF
- Bull. Amer. Math. Soc.
**47**(1941), 504-507

- A flat Klein bottle isometrically embedded in euclidean 4-space
- C. Tompkins PDF
- Bull. Amer. Math. Soc.
**47**(1941), 508

- The $R_\lambda$-correspondent of the tangent to an arbitrary curve of a non-ruled surface
- P. O. Bell PDF
- Bull. Amer. Math. Soc.
**47**(1941), 509-511

- On the simultaneous approximation of two real numbers
- Raphael M. Robinson PDF
- Bull. Amer. Math. Soc.
**47**(1941), 512-513

- Note on a theorem on quadratic residues
- Kai-Lai Chung PDF
- Bull. Amer. Math. Soc.
**47**(1941), 514-516