Linnaeus was a naturalist in this wide sense, and his 'Systema Naturae'
was a work upon natural history, in the broadest acceptation of the
term; in it, that great methodising spirit embodied all that was known
in his time of the distinctive characters of minerals, animals, and
plants.  But the enormous stimulus which Linnaeus gave to the
investigation of nature soon rendered it impossible that any one man
should write another 'Systema Naturae,' and extremely difficult for any
one to become even a naturalist such as Linnaeus was. 

Great as have been the advances made by all the three branches of
science, of old included under the title of natural history, there can
be no doubt that zoology and botany have grown in an enormously greater
ratio than mineralogy; and hence, as I suppose, the name of "natural
history" has gradually become more and more definitely attached to these
prominent divisions of the subject, and by "naturalist" people have
meant more and more distinctly to imply a student of the structure and
function of living beings. 

However this may be, it is certain that the advance of knowledge has