The stratified rocks represented on both flanks of the granite peak in the section, appear to have been deposited from water, and subsequently more or less lifted up, fractured, and bent. An attempt is made, on the right hand side of the section, to exhibit the foldings and inclination of the strata. The lowest are bent the most, and their dip is the greatest; and, as a general fact, there is a gradual approach to horizontality as we rise on the scale. 3. _The right hand side of the Section._ The strata on the right hand are divided into five classes: first and lowest, the _crystalline_, or _primary_, destitute of organic remains, and probably metamorphosed from a sedimentary to a crystalline state, by the action of subjacent heat. 2. The _palaeozoic class_, or those containing the earliest types of animals and plants, and of vast thickness, mostly deposited in the ocean. 3. _The secondary class_, reaching from the top of the lower new red or Permian system, to the top of the chalk. 4. _The tertiary strata_, partially consolidated, and differing entirely from the rocks below by their organic contents. 5. _Alluvium_, or strata now in a course of deposition. This classification is sometimes convenient, and frequently used by geologists. 4. _The left hand Side._ On the left hand side of the section the strata are so divided as to correspond to the six great groups of animals and plants that have appeared on the globe. The names attached to the groups are derived from [Greek: zoos] (_vivus_, living,) with the Greek numerals prefixed. The lowest group, being destitute of organic remains, is called _azoic_, (from [Greek: a] privitive and [Greek: zoos],) that is, wanting in the traces of life; and corresponds to the crystalline group on the other side of the section, embracing gneiss, mica slate, limestone, and clay slate, of unknown thickness. The _protozoic group_ corresponds to the palaeozoic of the right hand side, and embraces lower and upper Silurian, Devonian, or old red sandstone, the carboniferous group, and the Permian, or lower new red; the whole in Great Britain not less than thirty-three thousand feet thick. The _deutozoic group_ consists only of the triassic, or upper new red sandstone, and is only nine hundred feet thick, but marks a distinct period of life. The _tritozoic_ embraces the lias and oolite, with the Wealden, and is three thousand six hundred feet thick. The _tetrazoic_ consists of the chalk and green sand, one thousand five hundred feet thick. The _pentezoic_ embraces the tertiary strata of the thickness of two thousand feet. The _hectozoic_ is confined to the modern deposits, only a few hundred feet thick, but entombing all the existing species of animals. 5. _Characteristic Organic Remains._