for it a recognition as a distinct and separate disease. [Footnote 1: _Lectures on the Continued Fevers_.] [Footnote 2: _A Treatise on the Continued Fevers of Great Britain_, London, 1873.] [Footnote 3: _The Practice of Physick, being chiefly a Translation of the Works of Lazarus Riverius_, London, 1678.] [Footnote 4: _A Critical Essay on Fever_, 1718.] [Footnote 5: _A Treatise on Fevers_, London, 1758.] [Footnote 6: _A Treatise on Fever_, London, 1861.] [Footnote 7: _Medical Times_, March 22, 1851.] [Footnote 8: _A Treatise on the Practice of Medicine_, Philadelphia, 1855.] [Footnote 9: _A Treatise on the Principles and Practice of Medicine_, Philadelphia, 1868.] [Footnote 10: _Ibid._] [Footnote 11: _A Treatise on the Continued Fevers_, New York, 1881.] Unquestionably, many cases which have been classed under the head of simple continued fever, are really mild or abortive cases of typhoid or typhus fever, in which, in consequence of partial protection on the part of the patient, the characteristic symptoms of these diseases have not been developed. Such cases are seen in numbers during epidemics of these diseases. But, making due allowance for this source of error, there yet remain many cases which cannot be thus explained. Moreover, the disease occurs at times when no such epidemics exist. It may, therefore, be safely assumed that there is such a fever, and that, consequently, it must be accorded full recognition. CAUSES.--Any non-specific cause which is capable of producing a profound derangement of one or more of the important functions of the body may give rise to simple continued fever. It may follow, therefore, upon excesses of the table, extreme mental or bodily fatigue, exposure to the direct rays of the sun, or to great heat or cold, or upon the suppression of a secretion. One of its most frequent causes is over-exertion in warm weather. James C. Wilson has called attention to its frequent occurrence as a consequence of the combined influence of the excitement, the physical exhaustion, and the exposure to the direct rays of the mid-day sun which are attendant upon surf-bathing. It is often due in young children to the irritation involved in the process of teething or to that caused by the presence of worms in the alimentary canal. Wood taught that it might also sometimes occur during the prevalence of contagious diseases as an effect of the epidemic influence in those who were partially protected by a previous attack of the disease, or from some other cause, but it is more probable that cases arising under these circumstances are either mild cases of the prevalent disease or else are attributable to fatigue from nursing or to over-anxiety. The disease is more common in the young than in the old, and in children than in adults--probably from the greater impressionability of the nervous systems of the latter.