THE NAUTILUS. 29 



which was rather the worse for wear when received. The 

 plates measure 12 13 / 16 by lO 1 /^ inches. 



None of the circulars mentioned in connection with certain 

 other copies are found with this. 



Bound in with the original indices is a MSS. index written 

 in a large engrossing hand. The plates are numbered con- 

 secutively in the upper right-hand corner in ink and evidently 

 by the same hand that wrote the index, with the following 

 exceptions : Plate 5 has no number at all ; twenty-four plates 

 have the original engraved numbers in the upper right-hand 

 corner and eleven others, in addition to the written numbers 

 in the upper corner, have the original engraved number, run- 

 ning longitudinally with the page, in the lower right-hand 

 corner. Of these thirty-five engraved numbers, three are 

 simply numerals. The others have in addition to the number 

 a letter appended. Thus plate 8 is engraved "Fig e 8 d" 

 and plate 153 is engraved "Fig e 153 --ppp". All of the 

 plates with written numbers in volumes I and II are written 

 "No I", &c., while those in volumes III and IV, down to and 

 including plate 155, are written "Fig. 81", &c. The remain- 

 ing plates have simply the numerals. 



In all of the four volumes there are considerable differences 

 in the neat-lines surrounding the figures. Some have an inner 

 border of three lines, of which the center one is much the 

 heavier and an outer narrow one, while others have only a 

 single heavy line for the inner border. Eighteen of the plates 

 in volumes III and IV have no neat-lines at all. The neat- 

 lines, when present, were evidently added by hand and not 

 engraved. 



Plate 73 and eighteen others in volumes III and IV are 

 initialed "H", evidently in the same handwriting as the 

 written index, and plate 82 has endorsed on it: " (26 plates) 

 H". 



Two of the additional plates in volume IV are signed "E. 

 Sewell ' ', one in plain Roman letters and the other entirely in 

 capital letters. 



Volumes I and II, with the possible deviations noted above, 

 are in all other respects the same as the copy in the National 

 Museum described by Dr. Dall in 1905, excepting : 



