(2I7I) 
IfifeB. p. 57. edit. Bonon^ Tire cum eJjim (fafes he) i gran- 
dioTihus mufcis unam albis piUam lineis^ fpecie ilieSlusy (epi . 
eay in vola manus aliquandiuretenta^ plujiulos ediditVermu 
culos Candidas y mobilitate propria injignes^ 
This is the only Fly I have obferved with live and 
moving worms in the belly of it i yet I guefs, we may 
venture to fufped; all of this Tribe to be ia fome mea- 
fure Viviparous* 
With thefe Flyes I have fent you a paper of thofe odd- 
turned Snails mentioned in my former 
Letter 3 which perhaps you may think will 5o/^,^^r^' 
deferve a place in the Repofitory araougft 
the rarities of: the R>. Society. 
Somt general Enqmries cmceming Spiders. 
!♦ T yf THat forts of Spiders to be found with us in 
V V England^ and what is thebeft method to di- 
ftinguifli them and to reduce them to Claps ? f 
2. Whether Spiders come not of Spiders , that is, of 
creatures of their own kind ? And whether of Spiders 
are bred Graflioppers, Cicade^ Sec. as Interpreters falfly 
make Arijiule to f^jfix&:>Aldrovandus^ and late'y lurcher 
(.V. jifijh Hijl. Nat. hba, cap. icj* Confer Interpret; 
TCho. Ga:;^£^ Scaliger^ y4ldroz\) 
Whether Spiders are not Male and Fcmnle 5 and 
whether Female Spiders growing bigger than the Male, 
be fufScient to diftinguiihScxes. 
4. Whether all kinds of Spiders be alike as to the 
place and number of P^w/j'/^and whether all the thread- 
yielding kinds , are not furniflied with a double penisy 
that is, if the Cornicula or certain knobbed Horns, by 
which all Males are beft diftinguifiicd, be not each a 
/>m/5 andufedin the fo// alternatively ? 
• 5, Whether the Eggs in Spiders be not formed ^ and 
very large before the time of the Cdt ? 
6.What Spiders breed in Spring^and what in Autumi?? 
What Spiders are content with one brood in ihe' year, 
aiwil 
