Thesis proposal writing
An- alogical considerations may avail to guide conjecture to a certain extent. But the earliest forms AS YET known are not of the lowest organisation. In the inductive prosecution Law of sue- cession of of the question of the progress of life, the first forms - object would be to endeavour to determine the law to which the order of succession of species in different epochs may be found to conform. And, again, it is a point of material importance, but one in which few writers are agreed, what thesis proposal writing we mean by advance or progress, or what really constitutes a higher or more perfect organisation. Scale of It would rather seem that each species is higher advance. That species may be higher in certain respects and lower in others, is also dwelt upon and illustrated ESSAY III. Not a simple advance in the very imperfect knowledge we at present pos- from lower sess of it, it is at least clear that, so far from a regular advance from lower to higher forms, in many in- stances there appears rather a deterioration and de- gradation of character in the progress of time towards the existing state of things. But what seems most Combina- tion of cha- material towards the probable ultimate enunciation racters. Miller so forcibly expresses it, we find " the crocodile lying essays on the movie the help intrenched in the fish. One of the most material points in the whole Principle of the conti- inquiry relates to the question of continuity of nuit y f geological character observable in paleontological indications phenomena, throughout successive formations. On this point, then, we must make a few observa- tions.
It was not many years ago that the whole mass of rocks below the old red sandstone, and above what was called the primary, was confounded together under the common name of " grauwacke. But we have now, in the one case, through the combined labours of Sir R.
Barrande : again, in the other case, the labours of Sir C.
Throughout all formations, the grand truth to unity of plan of or- which every accession of geological discovery bears ganisation in all witness in a more remarkable manner, is the principle epochs, of unity of plan continually exemplified in all the varieties of organic structures disclosed. Whether a given organic fossil (as in some instances in more recent beds) exhibit characters differing from some known form only as a variety or sub-species, or whether (as in earlier cases) it present features unknown to any existing genus or order, 338 PHILOSOPHY OF CKEATION. The invariableness of the results through such enormous series of ages cannot but impress the mind, when duly considered, with the highest idea of the preservation of continuity.
But in some instances, especially in the more ancient formations, the series of forms present a more fragmentary ap- pearance. At intervals in the course of this series of some appa- rent breaks close and continual connexion, there are real or ap- in the series. It is not my intention here to descend into any such pole- mical disputes. Aqueous The popular apprehensions as to the nature of ge- deposits. Such remains were only occasionally imbedded "rari nantes in gurgite vasto" and thus afford no ade- quate representation of terrestrial life. Even marine remains are far from affording a complete memorial of the inhabitants of the ocean. At all events, it is a hazardous process to frame theories on the absence of such remains. Submer- Exceptions may, indeed, be conceived in cases where, instead of being formed by sedimentary de- ESSAY III.
Again, all the formations which geology has All deposits local and traced were simply local and occasional deposits, occasional only. Equally local, too, was the diffusion of organic forms. Alleged Again, it is alleged that the change from one tween the great group of formations to another, at least in formation? But, granting that between the periods of form- Lapse of time be- ation of the upper and lower groups referred to, tween suc- sessive de- great changes in physical arrangements took place, it posits.
If an interval of unknown and incalculable length intervened between two recognisable formations, and during all this vast time circumstances did not allow 346 PHILOSOPHY OF CREATION.
Analogy In a word, in all those geological periods during with those oases when which we can trace a continuous and gradual succes- deposits are are con- sion of formations without marked or violent inter- tinuous. If, then, in certain other cases, we write my research paper online find apparent interruptions in the order of thesis proposal writing species, apparent breaks in this orderly succession, or between such deposits of so different a character, periods inter- ESSAY III. Again, in another in- stance we find two different epochs, at which species or even genera exhibit a like wide difference. Of the interval we thesis proposal writing know nothing: we have either no intermediate beds, or an azoic mass.
The obvious inference from analogy is, that that interval was probably as long, and was marked by as gradual changes, as the former, though circumstances have prevented their being exhibited to us. Break in I then, we find, a bed containing certain species, succession.. The wide organic difference between two contiguous beds would only mark the longer interval of time between their deposition. In confirmation of the ideas thus suggested, I have great satisfaction in citing the testimony of two very distinguished men, each delivered from the chair of the Geological Society. The first I will quote is a single passage from the anniversary address of Mr.
Horner, who, amid a variety of other able remarks bearing on the present subject, ob- serves. Home gical periods, there appear to exist no clearly defined boundaries between them in reference to the whole earth. The terms we employ to designate for- mations can only be considered as expressing the general predominance of certain characters, to be used provisionally, as a convenient thesis proposal writing mode of classi- fying the facts we collect, whilst that knowledge is accumulating, which in after ages will unravel the complicated changes that belong to the successive periods into which the history of the structure of the whole earth may be divided. Even those who believe in a primeval azoic period will hardly sanction the supposition that there has been any repetition of azoic epochs since the first life-bearing era commenced. And if so, and if there were always sea and land since the commencement of the first fossiliferous formation, we are warranted in assuming that both earth and water had their floras and their faunas. This passage by aspect and type of one stage in time into another, is but scantily indicated at present in the uppermost manifestations of palaeozoic life, and the lowermost of the mesozoic.
The missing links will sooner 352 PHILOSOPHY OF CREATION.