6 ADVERTISEMENT. 



and perhaps in a somewhat diiferent style and shape, than the 

 four preceding volumes; giving more scientific and practical 

 miscellaneous matter, and less of the details of exhibitions. 



Some typographical, and also grammatical errors, will be 

 met with through the work, mostly owing to our absence when 

 numbers of the forms went to press. Those likely to mislead, 

 in scientific articles have been corrected. 



To those who have prepared articles for the work, we would 

 return sincere thanks in behalf of the Executive Committee. 



Eds. 



