MALARIA.
LANE LIBRARY

R. LA ROCHE, M. D.,

MEMBER OF THE AMERICAN PHILOSOPHICAL SOCIETY; OF THE AMERICAN MEDICAL ASSOCIATION;
FELLOW OF the college of PHYSICIANS OF PHILADELPHIA; CORRESPONDING MEMBER

OF THE IMPERIAL ACADEMY OF MEDICINE, AND FOREIGN ASSOCIATE OF THE

MEDICAL SOCIETY OF EMULATION, OF PARIS; OF THE ACADEMIES OF
SCIENCES OF TURIN, COPENHAGEN, STOCKHOLM, AND NANCY; OF
THE MEDICAL SOCIETIES OF MARSEILLES, LYONS,

Entered according to the Act of Congress, in the year 1854, by

BLANCHARD AND LEA

in the Office of the Clerk of the District Court of the United States in and for the Eastern District of Pennsylvania.

PHILADELPHIA:

T. K. AND P. G. COLLINS, PRINTERS.

1156 432 1854

TO CHARLES D. MEIGS, M.D.

DEAR DOCTOR :

To no one more appropriately than to yourself can I dedicate this volume. The innumerable marks of friendly, and indeed affectionate regard, I have received at your hands, and the devoted professional care you have taken of me and mine, by day and by night, during a period extending over more than a quarter of a century, and amid many painful trials through which a kind Providence has enabled me to pass, entitle you to this trifling return. May I trust you will receive it as a token of the sincere affection I entertain for you? Greatly do I wish I could know, or even think, that the volume which I here place before you were fully worthy of your acceptance. Before one line of it was prepared for publication in its present form, I had decided, as by the result of an instinctive impulse, to enhance its value by placing your honoured name at its head; and no one who can appreciate the feeling which prompted me, will needs be told that I have striven on that account to render the book what it ought to be. The effort may possibly— I fear will certainly-be thought by intelligent medical readers to have proved abortive. The results of my thoughts and researches, of my serious reflections and careful observations, may perhaps fail to meet the expectations of even the few indulgent professional friends who were apprised of my intention to appear before the public in this, to me, new capacity. But, should my volume meet the fate which many like it have suffered, and many more deserve to suffer, at the hands of the tribunal to whose decision all productions of the kind must be submitted-should it be soon consigned to oblivion-I shall feel neither disappointment nor regret, provided I can be certain that you have received some gratification at my having selected you as its sponsor. Would it could prove the worthy rival of the great, and unfortunately unfinished work of