It is therefore less important than the rest, and Bacon declares that he will not bind himself to the conclusions which it contains.

Moreover, its value will altogether cease when the _sixth_ part can be completed, wherein will be set forth the new philosophy--the results of the application of the new method to all the phenomena of the universe.
But to complete this, the last part of the _Instauratio_, Bacon does not hope; he speaks of it as a thing, _et supra vires et ultra spes nostras collocata_."-- _Works_, i.

71.
The _Novum Organum_, itself imperfect, was the crown of all that he lived to do.

It was followed (1622) by the publication, intended to be periodical, of materials for the new philosophy to work upon, particular sections and classes of observations on phenomena--the _History of the Winds_, the _History of Life and Death_.

Others were partly prepared but not published by him.