IK SEMlNAt VERMICULli, 



5«3- 



pare his obfervatlons with mine, it is neceflary to 

 tranfcribe fome of the chief paffages wliere he 

 fpeaks of fpermatic vermiculi. M. de Buffon 

 has, before me, employed part of the paflages to 

 compare his own obfervations with thofe of this 

 eminent obferver, — and here I have the pleafure 

 of following his example. 



The excellent Dutch microfcopift fent a com- 

 munication of his difcoveries on the human fe- 

 men to Lord Brounker, Prefident of the London 

 Royal Society, 1677. " Poftquam exceilentifli- 

 mus dominus Profeflbr Cranen me vifitatione fua 

 faepius honorabat, Uteris rogavit domino Ham. 

 Cognato fuo, quafdam obfervationum mearum vi- 

 dendas darem. Hie dominus Ham me fecundo 

 invifens fecum in lagenula vitrea femen viri go- 

 norrhoea laborantis, fponte diftillatum attulit, di- ' 

 cens fe poft pauciffimas temporis minutias (cum- 

 materia ilia jam in tantum eflet refoluta, ut in fif- 

 tulae vitrei immitti poflet) animalcula viva in eo 

 obfervafle, quae caudata, et ultra 24 horas non- 

 viventia judicabat. Idem referebat fe animalcula 

 obfervaffe mortua poll fumptam ab aegroto te- 

 rebinthinam. Maleriam praedicatam fiftulae vi- 

 treae immiflam, praefente Domino Ham obfervavi,^ 

 quafdam in ea creaturas viventes ; at pod decur- 

 fum 2, aut 3 horarum eandem folus materiam 

 obferv^ans, mortuas vidi, 



Eamdem. 



