The attention of the Reader is particularly directed to Appendix A, explanatory of American Leads. The Author is firmly convinced that American Leads are founded on true principles of whist play, and they therefore have his hearty approval. But, he hesitates to insist upon these leads in the body of the "Principles," as they have not yet met with universal,—and, perhaps, hardly with general,—acceptance.
The advanced player is also invited to consider, with care, Appendix B, which treats briefly of The Plain-Suit Echo.