An outline of the various social systems & communities which have been founded on the principles of co-operation : with an introductory essay / by the author of "The philosophy of necessity."
Published
London : Longman, Brown, Green, and Longmans, 1844
"The present sketch was written by the late Mary Hennell ... and first appeared as an appendix to ... 'The philosophy of necessity,' published in 1841."--Pref
