Proceedings of the Royal Society of Edinburgh, Volume 16The Society, 1890 Obituary notices are included in many of the volumes. |
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Altre edizioni - Visualizza tutto
Proceedings of the Royal Society of Edinburgh, Volume 23 Royal Society of Edinburgh Visualizzazione completa - 1902 |
Proceedings of the Royal Society of Edinburgh, Volume 8 Royal Society of Edinburgh Visualizzazione completa - 1875 |
Proceedings of the Royal Society of Edinburgh, Volume 6 Royal Society of Edinburgh Visualizzazione completa - 1869 |
Parole e frasi comuni
acid albumen angular annelids apiculi areola axis band Barbados Border narrow broad carbonate of lime carbonic acid cells central area central papillæ Central space absent chitinous cholera circlet Cleve Cleve and Möller coagulation coagulation point compartments convex Coscinodiscus Cstr curved Deby decreasing Denk Diam Diat disease distinct Ehrb endemic equations evident fasciculate granular granules Grev Greville Grun Grunow guano H. L. Smith H.M.S. Challenger Hardman Heurck hyaline ibid inner ends interspaces intervals irregular Janisch Lond magnesium Markings polygonal Markings rounded Markings towards centre mesenteries Micr Mikrog minute Möll O'Meara Oamaru oblique decussating rows obtusely OCEAN organism outer ends outwards ovum palps pangenesis papillæ particles permutation punctiform radial rows Rattray rays rosette absent rows radial salts Schmidt secondary oblique semiradius slightly solution space and rosette species specimens stopcock striæ subequal sulphate Surface temperature Trans tube valve Weissflog Wien
Brani popolari
Pagina 101 - I have attempted to explain heredity by supposing that in each ontogeny, a part of the specific germ-plasm contained in the parent egg-cell is not used up in the construction of the body of the offspring, but is reserved unchanged for the formation of the germ-cells of the following generation.
Pagina 776 - With all the care that was taken some portions of the mucou? membrane have suffered slightly, but in all cases the changes are so slight that we are enabled to speak positively on the points to which reference is made. In the Narwhal, as in other cetaceans, the stomach is of a complex nature, and has been compared by some observers to that of the ruminants. In the present state of our knowledge, however, it is difficult to give any definite opinion on the morphological affinities and relations of...
Pagina 710 - Let there be some means of consuming energy, or carrying away energy ; and it will fall into a stable allotropic condition. The Boscovich curve may be such that this condition is the configuration of absolute minimum energy ; and may be such that this configuration is the double homogeneous assemblage of reds and blues described above. Though marked red and blue, to avoid circumlocutions, these points are equal and similar in all qualities. The mathematical investigation must be deferred for a future...
Pagina 107 - Acquired characters are those which result from external influence upon the organism, in contrast to such as spring from the constitution of the germ.
Pagina 98 - Through a great series of generations the germinal protoplasm retains its specific properties, dividing in every reproduction into an ontogenetic portion, out of which the individual is built up, and a phylogenetic portion which is reserved to form the reproductive material of the mature offspring. This reservation of the phylogenetic material I described as the continuity of the germ protoplasm." " Encapsuled in the ontogenetic material, the phylogenetic protoplasm is sheltered from external influences,...
Pagina 107 - It is hard to find evidence of the power of the personal structure to react upon sexual elements, that is not open to serious objection. That which appears the most trustworthy lies almost wholly in the direction of nerve changes, as shown by the inherited habits of tameness, pointing in dogs, and the results of Dr Brown-Suquard.
Pagina 352 - ... sea water with the formation of carbonate of lime equivalent in amount to the carbonate of ammonia thus formed.
Pagina 420 - We may, therefore, eliminate x, a?, x3 by the rules for equations of the first degree. The result is . ..." He enunciates a general rule, and then takes up the analogous subject in Differential Equations, where successive differentiation takes the place of successive multiplication by x. In a postscript he acknowledges Sylvester's priority which the editor had pointed out to him. He knew nothing of determinants. CAUCHY (March 8, 1841).
Pagina 107 - ... most they do so in a very faint degree ; in other words, that acquired modifications are barely if at all inherited, in the correct sense of that word.
Pagina 99 - The part of the stirp developed into the " body" is almost sterile. The continuity is kept up by the undeveloped residual portion. (3) The direct descent is not between body and body, but between stirp and stirp. " The stirp of the child may be considered to have descended directly from a part of the stirps of each of its parents ; but then the personal structure of the child is no more than an imperfect representation of his own stirp, and the personal structure of each of the parents is no more...