APPENDIX. 



IT appears the most convenient arrangement to put the following 

 Tables in an Appendix by themselves, as referred to in different 

 parts of the work. 



Tables I. IV. are slightly altered from those appended to my 

 paper on the Genetic Cycle, in the Edinburgh Philosophical 

 Journal for January, 1860. Table V. is a modification of one 

 given by Dr. Sanderson, in the Cyclopaedia of Anatomy and 

 Physiology (Art. Vegetable Ovum) ; the explanation appended 

 to it shows in what respects his views have been departed from. 



The three succeeding give a conspectus arranged as much as 

 possible in the same plan, for the sake of comparison of the 

 theory of relations which I have been led to adopt in this 

 work. 



