DIRECTIONS TO THE BINDER. 



It is proposed to bind this work in Two Volumes ; in which case Vol. I. will contain the Address, Index 

 to Genera, and Text as far as p. 250. ; and Vol. II. will contain the remainder of the Text, with the 

 Additions and Corrections. It is further suggested that the Plates should form a Third Volume, with the 

 printed List of the Plates at the beginning. If, however, it should be preferred that the Plates should be 

 bound with the Text, the printed List of the Plates should be placed at the beginning of Vol. I., after 

 the Address, and the Elementary Plate and its description at the commencement of the Plates ; and 

 Plates I— XXX., together with Plates I*., IV*., and XVIII*. t should be bound with Vol. I. ; and 

 Plates XXXI. J — LXXX. §, together with Plate LIV*. and the Supplemental Plate, should be bound 

 with Vol. II. 



f Some of the early impressions of Plate XVIII.* were printed as Plate XVIII., from which it may be distinguished by 

 containing only five instead of six figures. 



| This Plate should have been headed Eurytelid.*: instead of Ntmphai.id^;. It ought systematically to be placed next 

 before Plate LXVIII. 



§ Some of the early impressions of Plate LXVII. were printed as Plate LXVI., from which it may be distinguished by 

 containing seven instead of six figures. 



