Principles of scientific botany, or, Botany as an inductive science / by J.M. Schleiden ; translated by Edwin Lankester.

Date:
1849
Catalogue details

Licence: Public Domain Mark

Credit: Principles of scientific botany, or, Botany as an inductive science / by J.M. Schleiden ; translated by Edwin Lankester. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

    427/646
    undoubtedly traverse the whole embryo-sac/ “ polleu-tubea frora'X wlKhl0’-1 ““.T reSard.the formation of the embryo agreeing with this can LSe^l/be'of' pletely explain the can<?p hnw om « . ^ rG ot va*ue “ ^ieJ at once com- could conceivably have arisen in th^mindTof S° not fbsolutely impossible, and, with respect to Meven in 1 S° vaai°us, truth-searching, servers. But if science Is actually To *”*1 °ertainI^ l]nPrejudiced ob- fancies, based on a few imperfect observ-nin06’• a ! b°klly-expressed what has been done before, must be wholly excluded °t^ri1Pnoranc.e of Essay in the “ Flora.”f ’ k * ®ee my observations on that With regard to particular points in the processes described t i lowing questions may vet be raised Tn l . oescnbed, the fol- Whether t'heymeX“e off,tt pushed inward and forms an investment me ?he apex oTtheST“ =ssliliisSisf MsiilSl inward on the pollen-tube P„t it i! •* at, the aPex> and run originally somewhat pressed of course very thin and delicate at C0l>sistence, may become dissolved gradually from the apex of the pollen-tube, so that the latter shall actually break through it Pq a gradual solution must, at the same time obliterotiTlt i downed border, which certainly is never seen.’ Itmaybe, howeveTthit tlie embryo-sac is only expanded out, so as to become verv ihin The possible modifications do not appear to me to bp in-mm-t \ , r be by the subsequent construction the embryonal vesicle pm ^ /ei ? ,S-in?e the cavity of the embryo-sac, and of coTs * Flora, 1844 and 1845, p. 193. t Flora, 1845, pp. 787. and 593. et seq.