REPOET ON THE OPHIUROIDEA. 3 



creation. If a certain egg grows into a plover with three toes it is a " Beetlehead," which 

 must continue to produce Beetleheads ; but let a rudimentary hindtoe be added and 

 there results a " Blackbelly"; and this is special creation. Every physiologist knows that 

 the observed permanent addition of a hindtoe in an embyro would be an event in 

 embryology comparable to the French revolution in pohtics. 



We hear much of "laws" of nature and of their " immutability. " Our only idea 

 of immutability is absolute sameness, and absolute sameness would be nature in 

 everlasting rest. Definition so exact is, however, not needed to show that the laws of 

 nature are far from immutable. Such laws are known only by their results ; and these 

 results show, on every side, clashing, disorder and interference. There are millions 

 upon millions of tendencies which are checked, warped, or destroyed by other millions. 

 Animal nature preys on itself and on vegetable nature, and vegetable on animal. Nor 

 is this work of destruction and recomposition a regular and compensating one. 

 Sometimes there is compensation and balance ; but again there may be annihilation 

 of certain forms. Astronomy, with its noble formulae, is really no better off. Its 

 accuracy is only comparative, as concerning vast times and spaces. It is not possible 

 to say that the earth has an absolute orbit, when we consider that the planet has 

 irregular lumps, four miles high, on its sides, and that its path is afi"ected by every 

 petty meteor that approaches. In reply it may be said, that, behind this disorder, 

 there stands an eternal order which corresponds to the higher conceptions of the 

 human mind. I do not deny it ; but such eternal order is a matter of faith, an 

 ideal. The phenomena within our reach exhibit only enough order and law to 

 prevent them from falling into chaos. In like manner human law has an ideal, but 

 the observed results would not prove its existence. All we notice in communities is a 

 tendency to law, which is feeble or strong according to the degree of their civihsation. 



It is said that zoological forms are matter evolved under immutable laws, but these 

 laws so far from being constant, are subject to perversion and interference. As for 

 matter, it is introduced as the matrix of all properties, which properties may be latent, 

 that is, hidden from our view, or active, and therefore observable. Matter itself is in its 

 last analysis everywhere the same ; from which it foUows that the smallest division of 

 matter contains all the properties, or, as they are called, potentialities, that are held by 

 the universe. Each atom, or molecule, or cell, is cosmos in itself. Example : among 

 the cells that form the human body, and whose number is so vast that no idea of it could 

 be conveyed by figures, there appears one cell, microscopic in size, simple so far as we 

 know simplicity, having no exceptional relations to light, heat, or electricity, showing 

 no sign that foretells a peculiar career. It is a female cell, an egg. Among another 

 collection of cells there appears, in like manner, a cell ; that of the male, a spermatozoon. 

 So long as they stay apart, each runs the common course of an organic element, ending 

 in dissolution and in passing into the waste material of the general mass. But, when 



