GULF BIOLOGIC STATION 



CAMKRON, LA. 



BULLETIN No. 13 



SOME OBSERVATIONS 



ON THE 



Motile Leaves of Erythrina Herbacea 



BY 



F. H. BILLINGS, Ph. D. 



ISSUED BY THE 



Louisiana State Board of Agriculture and Immigration 



BATON ROUGE 

 The New Advocate, Official Journal 



1!M)9 



