MNRAS Scans
Scans of plates in
L.J. Comrie articles from MNRAS
1928 and 1932. Click on thumbnail to get full-size 200 ppi image, which can
be anywhere from 250K to 1MB. The punch-card machines are British 45-column
round-hole models (the 1932 article [3] describes work that was done in
1927-28, just before the 80-column card was introduced).
| Nova Brunsviga [1].
|
| Brunsviga Dupla [1].
|
| Burroughs Class II [2].
|
| Burroughs Class II keyboard [2].
|
| 45-column round-hole punched Hollerith cards [3].
|
| Punch-card machines: Type 001 Hand Key-Punch;
Type 016 Electric Duplicating Punch, Sorter [3].
|
| Hollerith Type III Tabulator [3].
|
| Printing Mechanism [3].
|
References:
- Comrie, L.J.,
"On the Application of the Brunsviga-Dupla Calculating Machine to Double
Summation with Finite Differences",
Monthly Notices of the Royal Astronomical Society (MNRAS),
Vol.88, pp.447-459 (1928).
- Comrie, L.J., "The Nautical Almanac Office Burroughs Machine",
Monthly Notices of the Royal Astronomical Society, Vol.92, No.6,
pp.523-541 (1932).
- Comrie, L.J., "The application of the Hollerith Tabulating Machine to
Brown's Tables of the Moon", Monthly Notices of the Royal Astronomical
Society, Vol.92, No.7, pp.694-707 (1932).
Frank da Cruz / [email protected] /
Columbia University Computing History /
Sep 2003