Observ. 28.  Of the Seeds of Venice Looking-glass.

The description of them.

Obser. 29.  Of the Seeds of Time.

A description of them.  A digression about Natures method.

Observ. 30.  Of Poppy Seeds.

The description and use of them.

Observ. 31.  Of Purslane Seeds.

A description of these and many other Seeds.

Observ. 32.  Of Hair.

The description of several sorts of Hair; their Figures and Textures:  the reason of their colours, A description of the texture of the skin, and of Spunk and Sponges:  by what passages and pores of the skin transpiration seems to be made.  Experiments to prove the porousness of the skin of Vegetables.

Observ. 33.  Of the Scales of a Soale.

A description of their beauteous form.

Observ. 34.  Of the Sting of a Bee.

A description of its shape, mechanisme, and use.

Observ. 35.  Of Feathers.

A description of the shape and curious contexture of Feathers:  and some conjectures thereupon.

Obser. 36.  Of Peacocks Feathers.

A description of their curious form and proprieties; with a conjecture at the cause of their variable colours.

Obser. 37.  Of the Feet of Flyes, and other Insects.

A description of their figure, parts, and use; and some considerations thereupon.

Obser. 38.  Of the Wings of Flyes.

After what manner and how swiftly the wings of Insects move.  A description of the Pendulums under the wings, and their motion; the shape and structure of the parts of the wing.

Obser. 39.  Of the Head of a Fly.

1.  All the face of a Drone-fly is nothing almost but eyes. 2.  Those are of two magnitudes. 3.  They are Hemispheres, and very reflective and smooth. 4.  Some directed towards every quarter. 5.  How the fly cleanses them. 6.  Their number. 7.  Their order:  divers particulars observ’d in the dissecting a head.  That these are very probably the eyes of the Creature; argued from several Observations and Experiments, that Crabs, Lobsters, Shrimps, seem to be water Insects, and to be framed much like Air Insects.  Several Considerations about their manner of vision.

Obser. 40.  Of the Teeth of a Snail.

A brief description of it.

Observ. 41.  Of the Eggs of Silkworms.

Several Observables about the Eggs of Insects.

Observ. 42.  Of a blue Fly.

A description of its outward and inward parts.  Its hardiness to indure freezing, and sleeping in Spirit of wine.

Observ. 43.  Of a water Insect.

A description of its shape, transparency, motion, both internal and progressive, and transformation.  A History somewhat Analogus_ cited out of Piso.  Several Observations about the various wayes of the generations of Insects:  by what means they act so seemingly wisely and prudently.  Several Quaeries propounded.  Postscript, containing a relation of another very odd way of the generation of Insects.  An Observation about the fertility of the Earth of our Climate in producing Insects, and of divers other wayes of their generation._