394 Retrospective Criticism. 



Art. VII. Retrospective Criticism, 



CORRECTIONS. — Mr. HartwelVs Particulars on the Wea- 

 ther at Columbus, in p. 348. — We have omitted the words 

 "seven o'clock " From before the word " forenoon ; " and the 

 words " nine o'clock " from before the word " afternoon : " 

 each of the words stands at the head of the table. Our omis- 

 sion has much lessened the definiteness of the author's com- 

 munication : this we regret. 



Mr. Brown's Communication on the Minerals and Fossils in 

 the Gravel about Statiway, Essex, in p. 349 — 353. — In p. 350. 

 line 20. for " the needle is never active," read " the needle is 

 very active." In p. 352. for " Conchiferce" read " Conchifera." 



The Cuckoo. — In p. 327., in the last -line of the text, for 

 " discarded " read " discard." 



The Species of Crustaceous Animals discovered and described 

 by Mr. Hailstone, and illustrated and annotated on by Mr. 

 Westwood (261 — 276.). — From Mr. Westwood's remarks 

 upon my communications, I find there are two statements of 

 mine which require confirmation. 



The middle-sized Porcelldna [fig. 28. p. 265., and note * in 

 p. 270.] was found with spawn, which I cleared from its abdo- 

 men in preparing it for preservation. 



The Hippolyte ? has only two filaments in its superior an- 

 tennae. At the time I found this animal, I examined this 

 point repeatedly with the greatest care, being struck with 

 the general resemblance of the crab to the genus A'thanas. 

 Since I read Mr. Westwood's remarks, I have repeated my 

 examination, and have come to the same conclusion. I may 

 possibly be mistaken ; but having, at my first trial, had fresh 

 specimens of the A'thanas nitescens to compare the Hippo- 

 ]yte? with, I think I cannot have overlooked the third filament 

 which I found so readily in these animals. In my copy of 

 your Magazine, whether from a misprint, or a defect in the 

 engraving [in the latter, as we have found on comparing it 

 with Mr. Hailstone's drawing], I cannot say, the scale at the 

 base of the antennas is omitted ; a stroke of the pen to join 

 the inferior and superior antennae near their apices would set 

 the matter to rights. 



Upon the specific names which Mr. Westwood has applied 

 to the Porcellana and the Hippolyte?, I must take leave to 

 remark, that they seem to me singularly inappropriate. Hav- 

 ing been fortunate enough to discover and describe the ani- 

 mals in question, I think I am at liberty to claim the insertion 

 of trivial names, which seem to me more adapted to them. — 

 & Hailstone, junior. May 19. 1835. 



