LEEUWENHOEK’S MICROSCOPES old 
No. 15. Globules of Blood, from which its Redness 
proceeds. 
A thin Slice of Wood of the Lime-Tree, where 
the Vessels conveying the Sap are cut 
transversely. 
No. 16. [ Blank. | 
The eye of a Gnat. 
No. 17. A crooked Hair, to which adheres a Ring- 
Worm, with a Piece of the Cuticle. 
A small Hair from the Hand, by which it 
appears those Hairs are not round. 
No. 18. Flesh of the Codfish (Cabeljaeuw) shewing 
how the fibres lie oblique to the Membranes. 
An Embrio of Cochineal, taken from the Egg, 
in which the Limbs and Horns are con- 
spicuous. 
No. 19. Small Pipes, which compose the Hlephant’s 
tooth. 
Part of the Crystalline Humour, from the Eye 
of a Whale. 
No. 20. A Thread of Sheeps- Wool, which is broken, 
and appears to consist of many lesser 
Threads. 
The Instrument, whence a Spider spins the 
Threads, that compose his Web. 
No. 21. A Granade, or Spark made in striking Fire. 
The Vessels in a leaf of Tea. 
No. 22. The Animalcula in Semine Masculino, of a 
Lamb taken from the Testicle, Jul. 24. 
1702. 
A Piece of the Tongue of a Hog, full of sharp 
Points. 
sarily implies there were 14 preceding Boxes, since no Man begins with the 
Number 15. Mr. Leeuwenhoek, then, had another Cabinet, that held 14 
Boxes before ours in numerical Order, and probably each Box contained a 
Couple of Microscopes, as our Boxes do.” 
