342 E.. B. Hunt on an Index of Papers 
are essential tothe progress of science; that science like another 
Juggernaut, demands the sacrifice of the man himself to his 
chosen pursuit. Whoever thus reasons has already sacrificed his 
humanity to his speciality, and is but shouting the praises of 
Brahma. Nor is it easy to adopt a theory of scientific castes, 
which would make of the specialists a lower and necessary grade, 
whose business it is to gather materials for the generalising noble 
to arrange in their true order, around some latent principle which 
he alone is privileged to see. That some minds are thus noble 
by nature and by training is certain enough, but it is hard to 
believe that many who could be of any assistance as specialists, 
cannot also do some part however small, as the generalizers of 
their own field and of its relations to others. 
The present age of science may with great propriety be called 
the monographic age. We have reached that period when every 
subdivision of research needs to be presented in the form of a 
monograph. While it is still possible for the student of any sin- 
gle subdivision to pursue it in all the original papers treating 
thereon, it is quite impossible for the investigator of a more eX- 
tended area to study the contained and related subjects in their 
whole range of original papers. 'T'o him it is quite essential that 
the various subdivisions of research should each be digested by 
thorough masters of their component contributions, and brought 
out in their orderly, well balanced proportions. The true, the 
proven, the mature, has need to be separated by adept mono- 
raphers from the false, the speculative, and the crude. The 
contributions of many successive investigators, each tending to 
place their common speciality on higher ground, and to bring it 
out in more perfect definition, have all to be digested by one who 
‘is qualified to take the judicial point of view, and to use aright 
the privilege of moderns, who, as Bacon says, are the ancients of 
knowledge. 
The model monograph is one which presents the known sub- 
stantive facts of the subject treated in their natural order and 
relations with all attainable clearness, completeness and brevity, 
and which gives such an insight into the nature of all original 
memoirs thereon, as will enable investigators to recur to such 
originals as may be important for their special purposes. Already 
the mathematical and physical sciences have hundreds of subjects 
needing to be monographed, while comparatively few are yet 80 
adequately presented under this form, as not to need either a neW 
monograph or a revision of the old. ‘The great number of inves- 
tigators now at work; the late remarkable increase of periodical 
publications and memoirs devoted to scientific subjects ; the sub- 
dividing or fissiparous tendency of modern science and its sig 
proclivity to annex fields of empyrical practice and make them — 
rational or strictly scientific ; these and other causes have throw8 — 
