Botany and Zoology. 327 



videntlv be attributed ratlier to carele'JS 



the permanent book form tha; 



of these errors must evidently 1 



in the mode of statement than to lack of knowledge c 

 of the author, "^riius on page 1S7, after properly describing the 

 zoea of Crustacea as having only "antennai, jaws and foot-jaws" 

 for l(K'omotive ap])endages, he states that be has examined 

 Gclcmmi carrying eggs which '-contained zoea*, with the two 



of the claws in these animals doc^ not show itself until after one 



"^SZ 



formed," but in the 'next sentence he adds: "It is als( 

 tarian, eating decaying leaves; the mouth is small an<l re 

 alimentary canal is remarkably long, the intestine coiled 

 spiral, the mouth is small, destitute^ of a tongue." On ] 



ous ones of Th„kt^,,nna and other genera. ( 



)n page 12(^ he . 



" There i> in the Annelids a dorsal and ven 



tral b!<,od-ve>sc-l 



circulatorv apparatus being close<l and mo 

 than in the Crustacea and Insects, Liun,h,. . 



i-e hisrhlv de^e^ 



■vcepted,'- In.t th 



by no mean., true of all Annelids, for in manv 



genera (Z^./.V^-/ 



etc.,) the.e are no blood-vessels whatever, .-ni 







e ^l^vi^\^ 



to represent a later stVge of'^V/yi. thiu/tig. 



:-j.-,. buttlH-n.\ 



IS true. On page 7s it is said that ''in the 



star-ll.hisaiHl 1 



thurians, the alimentarv canal opens into ii 





appendage," and that these '-are in ronn.c 



l\!,ii with"tlH''co'. 





.uckrrs). The h 



statement is entireIv'\"iVoneIms, <,r at llaM 

 Wer is not true of most Uoluthurian., nor . 



■"(M?ofai!''iar-ti' 



The statement on page 70, that "in tlio.. ^t: 

 alunentary canal is a blind .ac. the ...-.-S : 



av rmpti..d into 



