Place of publication: London
Collation: 4 p. ; 18 cm.
Notes: A letter to the Editor of "The Index". From the library of Dr Moncure Conway. Printed by Wertheimer, Lea & Co,., London.
Place of publication: [s.l.]
Collation: 9 p. ; 18 cm.
Notes: From the library of Dr Moncure Conway. Printed by Wertheimer, Lea and Co., Finsbury Circus, London. Reprinted from The Index, April 12 1873. The Index is published weekly in Toledo, Ohio.