he laws of signs so far as these denote things --
| those laws of signs which determine what things they denote and what
| they do not -- it is necessary in Logic to pay especial attention to
| those terms which denote signs.  Such terms are genus species &amp;c.
| No thing is a genus but as there are terms such as man and tree
| which denote some one thing leaving it more or less indeterminate
| what one so we may speak of whatever may be denoted by such a general
| term as a genus or class.  Such terms ar