[12] It may become an important problem to the physiologist and physician to determine whether the same law does not hold good in respect to _whatever_ is naturally injurious to the human constitution _in any way_, so long as its resisting power _is not overbalanced_. If all kinds of unhealthy conditions, surroundings, and exposures can be made to produce the good effects of healthful stimulation when made use of to the proper extent, however little that may be, while only past that limit they become destructive, then a change will come over a great many notions and practices. Some facts are reconciled by such a theory which are otherwise quite contradictory. [13] _Appleton’s Journal_—department devoted to Science. Transcriber’s Notes pg 21 Changed: which is excedingly tender and painful to: which is exceedingly tender and painful pg 27 Changed: it invaribly has and must have to: it invariably has and must have pg 129 Changed: The “Hydropathic Enclyclopædia” recommends to: The “Hydropathic Encyclopædia” recommends