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PREFACE xi
the catalogues, books described as 8vo should be understood as being " 8vo et infra." Pure Bibliography for itself alone, like pure Science, does not often pay. The worker in one field as in the other must make his work practical. As " applied " Science often brings reward to the worker, so this specimen of " applied " Bibliography has enough of promise in it to induce its publishers to print it. Let us hope they may have no cause to regret it. L. S. L.
New York, February, 1905.
