Communications of the ACM

Letter from the president of ACM

Harry D. Huskey
Page 476

---

Some proposals for improving the efficiency of ALGOL 60

C. Strachey, M. V. Wilkes
Pages 488-491

---

Fitting spheres by the method of least squares

Stephen M. Robinson
Page 491

---

Low-level language subroutines for use within Fortran

M. P. Barnett
Pages 492-495

---

Library loading with alternate routine selection

Donald P. Moore
Page 496

---

MAP

C. L. Moore, M. L. Ruwe
Page 496

---

Algorithm 71: permutation

R. R. Coveyou, J. G. Sullivan
Page 497

---

Alogithm 70: interpolation by Aitken

Charles J. Mifsud
Page 497

---

Tape splitting

Donald P. Moore
Page 497

---

Algorithm 72: composition generator

L. Hellerman, S. Ogden
Page 498

---

Certification of algorithm 68: augmentation

L. M. Breed
Page 498

---

Certification of algorithm 42: invert

Anthony W. Knapp
Page 498

---

Remark on algorithm 52: a set of test matrices

G. H. Dubay
Page 498

---

SMALGOL-61

G. A. Bachelor, J. R. H. Dempster, D. E. Knuth, J. Speroni
Pages 499-502

---

Letter to the editor: defense of ALGOL 60

E. W. Dijkstra
Pages 502-503

---

Letters to the editor: inversion of power series

M. A. Chapple
Page 503

---

On a program for Ray-Chaudhuri's algorithm for a minimum cover of an abstract complex

Dominique C. Foata
Pages 504-506

---

Programming a duplex computer system

James Dow
Pages 507-513

---

Ballistic cam design

Mary Archambault
Pages 513-515

---

An engineering application of logic-structure tables

R. C. Nickerson
Pages 516-520

---