70 DETECTION OF NEEDLES. 



In bringing this little work to a conclusion, the author can 

 only venture to express a hope that his efforts to draw attention 

 to the advantage which, in many cases of disease, may be derived 

 from Electricity in some of its modifications, have not been alto- 

 gether fruitless. The science is, we believe, but now in its 

 infancy, and it is not improbable that future discoveries may 

 place in our hands a still greater opportunity of alleviating 

 human suffering. It must be remembered, however, that it is 

 only by constant experiment, by untiring research, that we are 

 likely to be made acquainted with such results. 



