PROCEEDINGS 



OK 'IHK 



Iowa Academy of Sciences, 



l<s.S7, l.s.ss. 1.S89. 

 Papers Presented at the First Session. 



The followiin^- iJupcrs were reud l)iit no nhstract was fur- 

 nished by their authors tor publicatiou : 



"On a New Astatic (lalvaiiometer Avith a Spiral Needle/* 

 and one ou the ''Vohunetric Determination of Lead, Ijariuni 

 and Sulphuric Acid," both pa[)ers Ix'iiio- by Dr. L. \\ . 

 Andrews, of the Iowa State University. 



"Artificial Propagation of the Pollen of Certain (irapes," 

 by rrofess(n- 13. D. Halstcd, of the Iowa A,i>ricultural 

 College at Ames. 



The foUowinii- abstracts were prepared l>y the respective 

 authors who are severally to ])e held responsible for the opin- 

 ions expressed : 



ANIMAL INTELLIGENCE. 



i;v PROi't:ss(tR h. w. parkkk. 



So far as evolution is concerned, it really matters little at 

 what point intelligence ap[)ears. 



Intelligence pi-»)i)er includes the reasoning power as its 

 chief and distinguishing characteristic. Facts regarded as 

 proving a degree of this power in animals were reviewed in 

 detail, and shown to be susceptible of a lower interpreta- 



