THOSE readers of NATURE who are in the habit of examining the obituary column of the Times, will have regretted to see, on Monday morning last, the announcement of the death of the eminent ...

Colophon: London : Printed by James Moyes ... Errata: p. [ix]; addendum: p. [145]. With as issued: The connexion of number and magnitude / by Augustus De Morgan. London : Printed for Taylor and Walton ...

“DE MORGAN is certainly no commonplace man.” Whenever we read this sentence in Crabb Robinson's Diary we wonder how so acute an observer could have penned it. No one who has read the shortest article ...