MONOGRAPH 



BEITISH APHIDES 



VOL. II. 



GEORGE BOWDLER BUCKTON, 



FELLOW OF THE BOTAl, LINNiEAN, AND CHEMICAL SOCIETIES OF LONDON : 



COEEESPONDING MEMBEE OF THE ACADEMY OF NATUEAL 



SCIENCES, PHILADELPHIA. 



" Laws may rot be enunciated upon insufficient experience .... The light of the untlcrstandiiig 

 is not a dry and pure light, but tinctured from the will and affections, and forms the sciences 

 accordingly ; for men are most willing to believe what they moat desire. Hence difficulties are 

 rejected through impatience ; experience is discarded through pride." — Bacon, Neomim Ortjayion. 



" How often have we seen some adventurous, and, perhaps, much censured wanderer light on 

 some outlying, neglected, yet vitally momentous province, the hidden treasures of which .... he 

 kept proclaiming, till the general eye and effort were directed thither, and the conquest completed 

 thereby, in these his seemingly so aimless rambles, planting new standards, founding new habitable 

 colonies in the immense circumambient realm of nothingness and night 1" — Carlyle, Sarlor resarlus. 



LONDON: 

 PRINTED EOE THE RAY SOCIETY, 



MDCCCLXXIX. 



