These, and hundreds of other equally suggestive facts, all pointing to geographical, climatic, and other influencing conditions, as the real objective points of inquiry, have been constantly before our botanical friends; and yet they have been content with Mr. Darwin's theory of climbing mountains to cross the geographical equator, under the impression that an enormous ice-cap, or rather prodigious "ice-ulster," would ultimately drift them into the southern hemisphere, or enable them to "coast" their way thither with the greatest imaginable ease. But why insist upon the migration of plants growing in the lowlands and about the bases and sides of mountains, and not suggest some means of transport for the equally beautiful flora, known as "alpine," on the mountain summits of the earth? These are distributed, as we have before shown, over all our mountain systems, in all latitudes and in all parts of the globe, as well as in the higher regions of vegetation as we approach the north pole. Surely, the delicate little harebells of these alpine regions should attract some interest, if not sympathy, from those who are constantly hunting up means of transport for the more hardy and robust plants that seem able to take care of themselves almost anywhere.

When the next great ice-cap shall sweep down from the north pole upon these beautiful alpine flowers they will have to travel somewhere. There is manifestly as much necessity for them to get out of the way as for the rest of the flora. How will they manage to get down the mountains into the lowlands, and traverse uncongenial plains and deserts, to find other and far-distant alpine homes? They can never, of course, get very far away from the regions skirted by eternal frost, for their cup of joy must be chaliced by the snow-flake, or their beautiful life is soon ended. But if all our alpine flora have traveled from one evolutional centre, or have been "created but once in time and place," how have they managed to cross the thermal equator and spread themselves out over all the alpine regions of the globe? We call upon Mr. Darwin and Professor Gray to rise and explain. Not that we want any explanation, but that their theory of plant-migration stands sadly in need of one.

The theory which the Bible genesis suggests to us is fully adequate to the explanation wanted. It explains not only why these alpine flora appear where they do, but why they cannot appear anywhere else. It also explains all the physiological facts to which we have referred in the foregoing chapters. Wherever the necessary alpine conditions exist the earth responds to the divine command, and the beautiful little alpine harebell is cradled into life, and rejoices in the bright embroidery it wears. And so, wherever streams are turned aside to flow through new meads and sheltered woods, or over broken and swaly places where cowslips never grew before, hardly a year will pass before this "wan flower" will hang therein "its pensive head," while all along the line of the stream the black alder will make its appearance in the lowlands, no matter how far its current may be diverted from its original channel, or how distant the supply of natural seeds. For nature's sternest painter can only delineate her as "instinct with music and the vital spark."

If our botanical professors would come forth into the true light of nature, they should accept the position of pupil to her, and not assert that of teacher. So long as they continue to peep and botanize upon her grave, or over ancient mounds and Hadrianic tumuli, they will never find out the cunning of her processes, much less the means she employs to accomplish her perfected ends. This modern idolatry of "hypotheses," with our chronic neglect of what nature does, is the great scientific stumbling-block of the age in which we live. Our botanists all agree that certain plants and trees disappear--hopelessly die out--from the absence of "necessary conditions;" when will they come to recognize the reverse of this undeniable proposition, and agree that the presence of necessary conditions may cause the same plants and trees to make their appearance, that is, spring into life in obedience to some great primal law, as unerringly obeyed by nature as the attractive force of the universe itself?

For nearly half a century the fact has been known that the geographical distribution of the European flora, and especially that of the British Islands, was referable to latitude, elevation, and climatic conditions. As early as 1835, Mr. Hewett Watson, a well-known botanist of that day, in his published "Remarks on the Geographical Distribution of Plants, in connection with Latitude, Elevation, and Climate," drew the attention of the botanical world to this remarkable feature of plant distribution; while the late Professor Edward Forbes pursued the same line of thought in his attempt to show how geographical changes had affected plant areas in Great Britain as far back as the last glacial drift. And yet all our botanical writers have been steadily persisting on immense plant-migrations to account for their geographical distribution, and have given us maps without number to show how the vegetal hosts have traversed vast continents, swam multitudinous seas, braved the fiery equator, and scaled the summits of the loftiest Andes. In the mean time, no botanist of any distinguished note, except M. De Candolle, has confidently ventured to question this migration theory, so imposing and formidable has been the array of names which have frowned down, like so many gigantic ghauts, upon the audacious questioner.

But the present actual state of knowledge on this subject forbids us any longer to accept theories for facts, premises for conclusions, or fallacious reasoning for legitimate induction. Truth and daylight never meet in a corner, and no one, in our day, need go to the bottom of a well in search of either. We are forever stumbling over the truth without knowing it, because our old traditional beliefs, like so many superannuated grasshoppers, are constantly springing up in our path and diverting our attention from her. There are physiological facts enough daily obtruding themselves upon our attention, if we would but notice them, in the case of wayside plants, garden and household weeds, and the more aggressive vegetation of worn out pasture-lands, to satisfy us of the truth of our theory, were it not for the swarms of these old traditional grasshoppers continually rising into the air before us, and shutting out the truth as it is in nature. And the worst feature about this whole business is, that we have come to regard these multitudinous insects as a delight instead of a burden.

But it is hardly necessary to pursue this subject further. We have shown, or shall show in the succeeding pages, that all crystalline forms come from necessary or favoring statical conditions; that all infusorial forms come in the same way, only their conditions may be said to be dynamical rather than statical; that all mycological forms (fungi) are dependent, for their primary manifestation, on conditions of moisture and decay; that all plant-life, from the lowest cryptogam to the lordliest conifer, is dependent on some similar incidence of conditions; that the mastodon, now only known by his fossil remains, must have wallowed forth from his "necessary mire" (plasmic conditions) in the Eocene period; and that all animal life must have come from some underlying law of primordial conditions, as impressed upon matter, in harmony with the "Divine Intendment" from the beginning; and that this law is still operative in the production of new forms of life whenever and wherever the same may appear. We shall also show that all living organisms, such as seeds, fungus-spores, morphological cells, etc., perish at a temperature of about 100° C., and that Bacteria, Torulæ, and other infusorial forms, making their appearance in super-heated flasks, originate not from morphological cells, plastide particles, bioplasts, or any other vital organism, but from indestructible vital units, which are everywhere present in the organic matter of our globe, and ready to burgeon forth into life whenever the necessary vital conditions exist, and the proper incidences of environment occur.

We have also shown that the earth still obeys the divine command to bring forth, or--if objection be made to this form of statement as unscientific--still obeys some inexorable underlying law tantamount to such command, and can no more help "bringing forth," when the necessary telluric conditions favor, than the cold can help coming out of the north, or the clouds dropping rain, when the necessary meteorological conditions occur. Give the future American botanist the physical geography of a country--its average rain-fall, temperature, etc., and the plant zone in which it lies, and, whether explored or unexplored, he will give us the general character of its vegetation, and name most of the plants and trees peculiar to its soil. And he will do this, not because he has any faith in the present theories of plant-migration, nor in the necessary distribution of seeds, but because he will study his favorite science with reference to latitude, elevation, climate, physical characteristics, rain-fall, soil-constituents, and other influencing conditions of plant-life.

But we will now proceed to consider the duration of vegetable species, for the purpose of showing that the evolutional changes they are undergoing, if any, must cover infinitely vaster periods of time than we have any data for determining, to say nothing of the unverified theories the evolutionists have been spinning for us.

Our geologic and paleontologic records are becoming richer in materials, more interesting in details, and more authentic in character, every year. We are turning back page after page of these lithographic records, only to find the domain of science widened and deepened in interest as we advance, or as our rocks are being excavated, our mountains tunneled, our vast mines explored, and the beds of our rivers and arms of seas thoroughfared and traversed by the iron rail. Meanwhile, science exhibits signs of becoming less devoted to new-fangled theories, more exacting in her demands upon her votaries, and more eager to extend the domain of facts as the only true basis on which to rest her claims for future recognition. She is less dogmatic to-day than she was a year ago, and is likely to become less so a year hence than now. And this is largely due to her methods of research and inquiry. She is now everywhere sending out her hardier and more enthusiastic sons into new fields of exploration, to return laden with ampler materials to build, and richer treasures to adorn, a temple worthy of her name. In the field of the fossilized fauna and flora, these treasures are of the highest value and interest, all indicating not only wide areas of distribution, but immense periods of time, in which species have existed without any greater changes in character than the necessary shadings into varieties would seem to require. For nature everywhere characterizes her methods of production and reproduction by a loving tendency to diversify and variously adorn her species, as if to express the infinite conceptions of that power above her, which "spake and it was done, which commanded and it was brought forth."