Área de identidad
Código de referencia
Add. MS a/202/115
Título
Letters from Augustus De Morgan
Fecha(s)
- 19 Oct. 1849 (Creación)
Nivel de descripción
Unidad documental simple
Volumen y soporte
4 pp
Área de contexto
Nombre del productor
Institución archivística
Historia archivística
Origen del ingreso o transferencia
Área de contenido y estructura
Alcance y contenido
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.