_Ex._ 1_b._ Reply to the Essay on the discovery of America.
1_c._ Institutio legalis; or, Introduction to the laws of England.
But it is better, when the sense will permit, to omit the “or” and
consider the second title as a clause explanatory of the first, as
Institutio legalis; introduction to the laws of England.
2_b._ Society for Promoting the Diffusion of Useful Knowledge.
2_c._ Boston Massacre, French Revolution, Gunpowder Plot, Middle Ages.