Identificatie
referentie code
Add. MS a/202/115
Titel
Letters from Augustus De Morgan
Datum(s)
- 19 Oct. 1849 (Vervaardig)
Beschrijvingsniveau
Stuk
Omvang en medium
4 pp
Context
Naam van de archiefvormer
archiefbewaarplaats
Geschiedenis van het archief
Directe bron van verwerving of overbrenging
Inhoud en structuur
Bereik en inhoud
7 Camden St. & T. - Thanks WW for his paper on curves: 'It is a clear addition to our means of expression'. ADM is surprised at 'the arcs which become negative in turning a cusp'. How does WW know that his solution is the correct one? - there 'may possibly be an infinite no. of solutions'. Sketches his pen, and describes how the ink is added at one end, and the other end is merely capillary, sees that with improvements it will mean a pen with no dipping needed, and no blots.