The book originally contained ten papers, two more being added in the second edition and one in the third.

A second supplement, added in the edition of 1875, gives a brief account of trees and shrubs introduced since 1859.

A new value, Respect, was added in the second edition of Extreme Programming Explained.

Four taxa were added in the 2nd (1740) edition:

Category 6 was added in the 4th edition of the Mammography Atlas.

However, Rangpur Division was added in the second edition.

It was first added in the third edition.

Followed by the Refutation of Idealism (added in the 2nd edition).

Borges added four new stories to the collection in the 1952 edition, for which he provided a brief postscript to the afterword.

However, new security (anti-counterfeit) features are added in the 2005 edition that distinguishes the two.