ANNUAL OF SCIENTIFIC DISCOVERY. 



NOTICES OF THE PRESS. 



"Nothing which has transpired in the scientific world during the past year, seems to 

 flavo escaped the attention of the industrious editors. We do not hesitate to pronounc* 

 Hue work a highly valuable one to the man of Science." Boston Journal. 



"This is a highly T aluable work. We have here brought together in a volume of mode- 

 rate size, J1 t'ne leading discoveries and inventions which have distinguished the past 

 year. Like the hand on the dial-plate, ' it marks the progress of the age.' The plan has 

 our wannest wishes for its eminent success." Christian Times. 

 "A raost acceptable volume." Transcript. 



"The work will prove of unusual interest and value." Traveller. 

 " We have in our possession the ledger of progress for 1849, exhibiting to us in a con- 

 densed form, the operations of the world in some of the highest business transactions. To 

 say that its execution has been worthy of its aim is praise sufficient." Springjidd Re- 

 publican. 



"To the artist, the artisan, the man of letters, it is indispensable, and the general reader 

 irill find in its pages much valuable material which he may look for elsewhere in vain." 

 - Boston Herald. 



" We commend it as a standard book of reference and general information, by those 

 who are so fortunate as to possess it." Saturday Rambler. 



" A body of useful knowledge, indispensable to every man who desires to keep up with 

 the progress of modern discovery and invention." Boston Courier. 



" Must be a most acceptable volume to every one, and greatly facilitate the diffusion of 

 Useful knowledge." Zion's Herald. 



"A nost valuable and interesting popular work of science and art." Washington JVa- 

 tional fntelligcrcer. 



" A lich collection of facts, and one which will be eagerly read. The amount of informa- 

 tion contained within its pages is very large." Evening Oazette. 



"Such a key to the progress and facts of scientific discovery will be everywhere wel- 

 comed." New York Commercial Advertiser. 



" A most valuable, complete, and comprehensive summary of the existing facts of sci- 

 mse ; it is replete with interest, and ought to have a place in every well appointed li- 

 srary." Worcester Spy. 



" We commend it to all who wish what has just been found out ; to all who would like 

 o discover something themselves, and would be glad to know how : and to all who think 

 jhey have invented something, and are desirous to know whether any one else has been 

 before hand with them." Puritan Recorder. 



"This is one of the most valuable works which the press has brought forth auring the 

 present year. A greater amount of useful and valuable information cannot be obtained 

 from any book of the same size within our knowledge." Washington Union. 



" This important volume will prove one of the most acceptable to our community thai 

 has appeared for a longtime." Providence Journal. 



"This is a neat volume and a useful one. Such a book has long been wanted in Amer- 

 ica. It should receive a wide-spread patronage." Scientific American, New York. 



"It meets a want long felt, both among men of science and the people. No one who 

 feels any interest in the intellectual progress of the age, no mechanic or artisan, who as 

 pires to excel in his vocation, can afford to be without it. A very copious and accurate 

 index gives one all needed aid in his inquiries." Phil. Christian Chronicle. 



" One of the most useful books of the day. Every page of it contains some useful in 

 formation, and there will be no waste of time in its study." Norfolk Democrat. 



" It is precisely such a work as will be hailed with pleasure by the multitude of intelli 

 gent readers who desire to have, at the close of each year, a properly digested record of 

 its progress in useful knowledge. The project of the editors is an excellent one, and de 

 serves and will command success." North American, Philadelphia. 

 "Truly a most valuable volume." Charleston (S. C.) Courier. 



"There are few works of the season whose appearance we have noticed with more sin- 

 cere satisfaction than this admirable manual. The exceeding interest of the subjects to 

 wnich it is devoted, as well as the remarkably thorough, patient and judicious manner in 

 which they are handled by its skilful editors, entitle it to a warm reception by all tba 

 Crieml* of solid and useful learning." New York Tribune. 



