[201.] Remarks.

[202.] Uſe of the Machine. Problem I.

[203.] Demonstration. Concerning the before-mention’d Inclination of the Mirrours.

[204.] Prob. II.

[205.] Prop. III.

[206.] Problem IV.

[207.] As the Machine’s Height above the Table, leſs the Glaſs’s focal Length, is to

[208.] The Height of the Machine above the Table; So is The Glaſſes focal Length, to the Diſtance of the Figure from the Glaſs.

[209.] 37 Remarks concerning the Repreſentation of Per-ſons Faces.

[210.] A Deſcription of the Second Machine.

[211.] The Uſe of this Machine.

[212.] A Demonſtration of the Inclination of the Looking-Glaſs.

[213.] FINIS.