This period is marked by rather more strenuous efforts than have been made before in this country, to solve the problem of condensing and simplifying the law. Our own day is peculiar in the endeavors we have seen to evolve what is claimed to be a science of jurisprudence. Some admirable writers have succeeded in dividing the domain of law into its larger or smaller fields, and have shown with more or less fulness the relative positions of these, and their mutual dependence. This is a valuable service; for all lawyers know that, without a reasonably clear perception of the place of every rule in the general scheme of law, there can be no complete understanding of any legal doctrine.
Campbell, James V. "Materials of Jurisprudence." Am. L. Rev. 14 (1880): 257-88.