EXPERIMENTS WITH CHRVSOMELID BEETLES. 2Q 



were greater in number, those in the red light were retarded and 

 finally died, and those in the violet light were larger, but less 

 advanced and had greater powers of resistance. 



These results have not been confirmed for the frog and other 

 animal- by later inve-tigators. For example, Yernon (1895) 

 found that the larva- of < < hinoderms, in some cases, were not 

 killed by the green light, and that yellow light caused greater 

 injury than red. Dric-< h 1*92), moreover, claims that the eggs 

 of Riuiti. I-.chinns and riunorbis are not influenced by any of these 

 colors. 



In e\|u -riment- on the p: j mantis, Przibram (1906) found 

 that the influence of green, red ami yellow gla--< > \\ as unfavor- 

 able-, though t hi- may ha\ e br.-n due to differences in the tempera- 

 ture, \\ hii li \\ a- not controlled. 



M riment \\ith ih '. bigsbyana confirms for the 



thi- beetle the if-ult- obtained by Drie-cli for eggs of 

 Rumi, /'.< l;i>i;^ and /'/<: 



/ L LABI IB > n -v\. 



Mn HI-. 

 Ajuil i 



1 I II R A I 1 RE. 

 Davenport ( 



or :,.xr. Boston Soc. Nat. Hist., \'..l 



Driesch 1! 



'/J : ..!.. B.|. 



Fere. C 



'i4 . ;it 1 intl; 'it 'I'- 1'i-inlii 



.!< C. R. S 10. 



Hegner. R W. 



'OS,: ' Beetles, I al- 



pha '!. Miultipu: ' iiiatn. l'-\'l"'. VL 15. 



'08 .-iininants fr tin- l~.^ 



Soiin- ( b 16. 



OQa [I,,. ] the Eggs of N-IIIC- C In \ -..iu.-li.| 



|. . ; ii n I \;> Z ' I. (>. 



'00'' II;. < I:I-MI .in. I l-.iii\ Hi-:.. iv -if the Germ-Cells in Sun- ("lirvMirnelid 



Hi-'tlt-.. Joiini. M-itph.. \'--l. JO. 

 Jenkinson. J. W 



'09 K.\|><-iiiiiriu.il l-liii! 

 Loeb. J. 



96 lYliri '.nhihlung bei Thi- H-n. PflUger's 



i.. M-l. 



