The Vegetable System Author:John Hill Subtitle: Or, a Series of Experiments, and Observations Tending to Explain the Internal Structure, and the Life of Plants; Their Growth, and Propagation; the Number, Proportion, and Desposition of Their Constituent Parts; With the True Course of Their Juices; the Formation of the Embryo, the Construction of the Seed, and the Encrease From That S... more »tate to Perfection General Books publication date: 2009 Original publication date: 1759 Original Publisher: Printed at the expence of the author, and sold by R. Baldwin Subjects: Botany Nature / Plants Science / Life Sciences / Botany Notes: This is a black and white OCR reprint of the original. It has no illustrations and there may be typos or missing text. When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. Excerpt: C H 'A P. VII. Of the Head which terminates the Fibre. HE naked eye may fee this head at the extremity of every Fibre plainly, in a Root thus cleaned: and it is impoffible to look on it without furprife ; it is fo different from what the received opinions lay concerning the extremities of Fibres. They are fuppofed fmall beyond all view, and open. On the contrary, we fee them here enlarged and clcfe. The greateft wonder is, that a thing fo obvious, in a regular enquiry, fhould have efcaped the ohfervation of Naturalifts fo long. The depth of Winter is the time to make thele obfervations ; for the warmth and wet of Spring make great changes in the Fibres. To the naked eye one of thefe heads appears obtufely conical, larger than the adjoining part of the Root, and altogether diflerent in colour and fubftance ; that is cclourlefs and tranfparent, this part is cpake and yellow. No mor-a appears till we cut it open. A Transverse fection of this part fhews a very delicate conftruction, and very wonderful: but we mall be more familiar with the parts which compcfe it as we advance farther in the Anatom...« less