C 301 ) 



llruggling to get out from amongft the Mace wliere it was enclofed, 

 broken oiY part of them, in which flriiggle alfo, I fancy it had been 

 killed. 



After this, I appHed myfelf to examine the white Mace, as it is 

 called, a parcel of which I liad brought home with me ; and I im- 

 mediately perceived that all the matter or fubflance which had been 

 enclofed between the membranes compofing the outward furface of 

 the Mace, \^"as confumed or eaten away. 7'his fubftance, which 

 for the moft part, confills of oily globules-; in which the whole 

 virtue of the Mace confifts, being i'o Ilripped from thofe mem- 

 branes (of which membranes,, the leaves of all plants, however fmall 

 they be, are compofed, and whereby the internal moillure of the 

 leaf is kept from evaporation) nothing remains but the thin mem- 

 branes themfelves, confiding of wonderfully minute veflels, lying 

 lengthwife in the leaf, which altogether exhibit a white appearance : 

 hence thefe leaves are called white leaves, or white flowers of Mace, 

 whereas, in facl they are nothing but the very thin membranes of 

 tliofe leaves. 



I found, on the infide of thefe membranes, various oblong particles 

 pointed at the ends, and fome of tliem tranfparent; thefe I concluded 

 to be. the excrements of the maggots-I have mentioned, and to have 

 been voided by them at different periods of tlieir growtli, becaufe, 

 though of different fizes, thel'e particles were all of the fame fhape. 

 Farther, I obferved fome of the broader leaves of Mace to be fo eaten 

 av/ay, that only one of the membranes remained, and having in 

 vain fought among them for any animalcule, I threw them all away. 

 After this, I procured a frefn fupply of the white leaves of Mace, 

 not doubting that I fiiould find fome dead animals among them. 

 At length, after a long fearch, I found a fmall white particle, not 

 larger than a grain of fand, which, examining by the microfcope, I 

 found to be an animalcule, the hind part of wliofe body wastranf- 



