( 38o ) 
Tliere are yet other Oily Juices, which after Coagu- 
iation^harden, and are called Rofin; and fuch our Ivy 
yields abundantly. Hither alfo may be referred the 
Juice of Jm 'tperus vulgaris iaccis parvis purpunls^ J, B. 
which is a hard fat Juice and not much Gummy. 
ltd oily Chops of Ivy made in March, there did exu- 
Juice, date a thick Matter like BariTi, yeliowifli and greafie : 
Hedera, It melted like Oyl betwixt my Firigers, not having the 
kaft clamminels then perceivable. In procels of time 
it hardned and crufted on the Wounds like courfe brown 
Sugar, it burns with a laftingFlame, and fmells very 
ftrong. 
Lanucafyh Alfb on the top.moft Leaves of La^luca fyl. cofla 
fpinofa^CB. in July, many (mall JDrops or Pearls of an 
Oily Juice, coagulated and hardned^Rofin-like, are plain 
' to be difcerned, efpecially with a fingle Microfcope : 
They are of an Amber Colour and Tranfparent, eafi- 
ly to be wiped off, as being only Oily Juice exudattfd; 
Flos ^rmo- And I am of the Mind, thatevem theble^v Flower of 
ripe Plumbs is nothing elft, but a fine refinous coagula- 
tion of the tranfudated Juice. 
On the underfide of the! Leaves, and all over the 
Stalk of Bonus Henrkus y J. B, do ftick infinite fmall 
Lapthm Tranfparent Pearls : Thofe clear Drops are hard to the 
un^uojum. touch , and feel hke greafie Sand, not clammy, and 
therefore it was well called Vn^uoje by C. B. and we 
put this fpontaneoufly exudated Juice, amongft the re- 
fmous Coagulations,' Infufe often in the fame Liquor 
this Plant. Qu. Whether the Sand belnflamabie ? Ac 
what time of the Year it moft abounds ? Qu. concern- 
ing the hoarinefs of Vulvaria ? 
And thus far we have treated of the Juices of Plants, 
as they are differenced, principally by ttiat accident 
of Coagulation and other Natures : Now we proceed 
to Note our Obfervations concerning the fame Juices 
