74 ^^* Howard's Account of a Mkrofcopkal Invefiigatm, Gfr*. 



3. Whether the germ or embryo of the feed, previous to the Im- 

 pregnation, contains it. 



4. In what manner the pollen of plants in general will be a6led 

 upon by the liquor from the nedary, when expofed to it in circum- 

 llances fimilar to thofe of Exp. 4. 



5. And laftly, to inveftigate the varieties in form and flru6lure 

 of the different fpecies of pollen ; and to examine how far they 

 agree or differ in t^e feveral fpecies of each genus, and genera of each, 

 natural order. 



IV. Obferva^ 



