j _ (20^7) 
ExtraBofaLetterwrHtenhy MrMzxtmlA^ittto theVubliJher^ 
Jannuar, 25^ idTrj relating "partly to the fame Argument mth 
that of the former Letter^ and direBing to another If^fe&^ that 
isltke to yield an Acid liquor '-^ partly to the Bleeding of the 
Sycamore* 
SIR, Concerning the Acid liquor of Pifmires 5 ihave ve* 
ry lately received from Mr. Wray the Account ( 1 fuppofe 
you have it alfoby this time,) that was feot him from Mr. Fi- 
j^^randMr* JeJJop-^ wherein thefe two laft Gentlemen make 
this further Inquiry, Whether there be any other Infed, or 
Animal, Flefli or Fifh, that will afford an Acid Juyce^ they 
having with great induftry tried many j^^riejamongftlnfe&s, 
and other Animals, without lighting on the like Acid liquor, 
I amof the mind, there are 5 and a ready way to find fuch our^ 
may bcjthat having obfervcdjthat a Pifmire broifed and fmeit 
td, emits a ftrange fiery and piercing favour, like the leaf of 
theHerbj hy Botanifis czWtd Flammula^ broken at one's no- 
ftrils 5 by this means I have,fince 4/r. Wray put the queftfon to 
me/ound an Inieft, which I fufped, may yield an Acid liquor 
as well as the Pifmire ^ and that is the Long and Round- 
bodied read- coloured Julus^ diftinguifhed from ail other Midti" 
peds^ inthattheir innumerable legs are asfmall ashair , and 
white, and in going they pre moved like waves ^ not rare 3- 
mongft drier rubbifli 5 no Scolopendra, ours being an Karmlefs 
inied, and that armed with dangerous forcipps^ The body, 
of this JuIhs being bruifed ftrikes the noftrils exceeding fijerce- 
Jy^ butl have not yet had an opportunity to furnifh my feff ' 
with any quantity of them for farther trials. The Change of 
Colours in Flowers, is a fubjed ! have a little confidcred^ 
and you (hall have my thoughts and Experiments about it more 
at leifure. 
As to the Bleeding of the Sycamore • the laft year I wintered 
at Nottingham, where I pierced a Sycamore about the begin- 
ning of iV(?z;e«?^er^ the turgefcence of the Buds inviting me 
thereto, and (bme hopes of improving the notion of Winter* 
bleedings, fo happily difcover'd by Air, B'il/oughhy 2ir\d Mr^- 
Wray. This fucceeded fo welLwith Qie^ that I did afterwards 
en^a^e . 
