OBSERVATIONS 



ON 



SOME INTERESTING PHENOMENA 



IN 



ANIMAL PHYSIOLOGY, 



EXHIBITED BY SEVERAL SPECIES 

 OP 



PLANARI.E. 



ILLUSTRATED BY COLOURED FIGURES 



OF 



LIVING ANIMALS. 



BY 



JOHN GRAHAM DALYELL, ESQ. 



EDINBURGH: 



PRINTED BY ANDREW BALFOCR, 



FOR ARCHIBALD CONSTABLE & CO. EDINBURGH ; 



AND LONGMAN, HURST, REES, ORMK AND 



BROWN, LONDON. 



1814. 



