CONTENTS 



Page 



Part I s Background and summary of results, o c <. o o a <> . « . . <> <. o o « o 1 



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Part lis Observations on the chemoreception of tuna,, . „ o « o o o oo o . . 8 



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XX o xjaxvXx sn preparaT»xons 0000000 00000000000000 0000000 xi}. 



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iVg Tuna flesh preparations o » o o o » o » o o » » „ o o . o » <. « » . « o » « 18 



Vo Asparagxne and dol-=asparagine. o » o <. » » » o o » .> o o o <. o . . . 30 



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Discussion and Gonclusions 00000000000000000000000000^000000 31 



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Part Ills Observations on the reaction of tuna to artificial 



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i„ Reactions to white and colored beams of light 



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iio Reactions to radiating light from bulbSooo o <. o o , <, . h^ 



iiio Reactions to radiating light from buIbs„o c o o „ » » . . hi 

 iVo Reactions to radiating light from white and 



colored bulbs of low intensityc o o o » , o >. o o o » » » o » o u7 

 Vo Reactions to tiie horizontal beam of a projector 

 and to radiating white and colored light 



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vio Reactions to white and colored beams of light 



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Reaction:^' to continuous white lighto « o » o o <. oo oo ooo o o o o.. pU 



Reactions to intermittent white lighto <, . « ^ ^ o o o o » « <. o o o o 5o 



Reactions to continuous colored light c „ o .= o « o . o » , . o o » » » 5o 



References ., , „ o o o o o o o o ^ . » .. , o ^ » o » - <> <> » « o o o o = » o u o o <> o o » o o « o , « » <, » 5o 



