/ir)8 IV CO.NKKIU'.NCK INÏKUNATIONALi: l)K (iKNKTIOl K. 



l'^NlH'riineiil I. 



■H'tih Ju]y, b-At} a. iti. — Froni :i Ijlossdiii nr.V. ai/lrcxtri^ gallieicd llio pre- 

 vious day some pollen wns spriiikicd on Ici a dry slido. 



lîcncnlh llio microscope ail llic :;rniiis \\(Te sccii lo hc round, porrecl 

 spiicrcs. ."(Kl werc connled, aniongst, wliich wcrc onlv ." oval i;rains. 





.\. siKii'eoh'ns. 

 iiiiiiulcs lii|i lipht. ItiaiilirMfjin cld'iccl. 



* . 



•«/(•//^ < .V. S,ni,lrnr \-,). 

 l'.l,- pui-plo. 



li;irk(>r Purple. 



A S'roup was cliosen lo 1)C Icl'l in I lie field of obscrv niion. a central niass wilh 

 'i isolaicd t>rain'? oullying-. AH tliosp were perfectly round and had no slit : 

 al8-lo a. m. ,2 1/2 hours lalcr.a liny slil appearod in one isolatcd i;rain Ihe clel'l 

 Icnj^'llicned (lie sphère chan^iny lo a peglop form, 2 olhor isolaled grains of llie 

 central group now showetl Ihe (delt, changing lo Ihe pegtop shape. By Ij-là 

 a. m. Ihe clefts had exlended and tiie peglop l'ornis had assumed diamond or 

 spindie forms. 



The pollen which had heen in sunshine wns now in shade and u[i lo 

 7r)() p.m. no further change occurred. 



'i7lh .luly, 6 a.m. — Same field of observation. — The four isolated grains 



