CUL-DAR65.40    Note:    1881.01.06   Sand is rendered pale by immersion for some weeks in diluted muriatic   Text   Image

The Complete Work of Charles Darwin Online 40 [in margin:] I have only just alluded to this in Ch. I Sand is rendered pale by immersion for some weeks in diluted muriatic acid — The tiles not affected, but not tiles (I cannot avoid feeling rather sceptical whether the discoloured bits were really tiles or not pale brick accidentally in soil) I must not give tiles without further evidence as were added very little before worms dissolved I think bits of brick given before) I have now (Dec 21

CUL-DAR63.53    Note:    1881.01.20   Beanstick[?] from precincts of Abbey — not from trap-door — bit of brick   Text   Image

bits of mortar — some bits of tile — as they are flakes — bits of some vine of slate with points edges. Little rounded. a 2d bit from trap-door bits not so much worms, yet some show attrition Jan 20 188

CUL-DAR65.52-53    Note:    1881.02.00--1881.03.00   Drawing in of Leaves & Triangles into Burrows   Text   Image

[Table of observations 4-27 March 1881] Triangles slowest drawn in by worms in Pots Divided into 3 equal parts Narrow Triangles Broad triangles 5

CUL-DAR162.113    Note:    1881.02.02--1881.02.05   Petioles of Robinia. (a memo)   Text   Image

this thick layer of soft tissue wd not be neglected.─ It is possible that worms draw such these objects inside I believe gnawed but not certai

CUL-DAR65.65-74    Note:    1881.02.04--1881.03.17   Triangles of Paper / some of card wetted (1 inch x 3) under lime trees   Text   Image

The Complete Work of Charles Darwin Online 65 1) 1881 Triangles of Paper Feb 4th some of card wetted (1 inch x 3) under Lime trees many previously pulled twigs leaves out of Holes, 3 well pulled by apex into holes 2 of them had basal corners quite close, the other was so dirty all are if could not be known whether worm had first tried by basal corner — A 4th triangle had been pulled about much dirtied but not dragged into holes; one of basal angles was a little frayed as if worms had tried

CUL-DAR65.65-74    Note:    1881.02.04--1881.03.17   Triangles of Paper / some of card wetted (1 inch x 3) under lime trees   Text   Image

, drawn into hole by middle, of course doubled crumpled Gravel walk orchard 1 narrow V by apex, extreme tip doubled. 4 Broad buried by one of basal angles, in no case drawn far in, angle of course much crumpled. 1 Drawn in by middle of course doubled crumpled. These broad papers are the stuff from other basal angles to go in hole. Could cold weather have made worms work slovenly? 6

CUL-DAR65.60-63    Note:    1881.03.04--1881.03.11   Narrow Triangles of Paper — Worms in Pots [manner in which dragged into   Text   Image

March 12th (3) Narrow Triangles given to worms in Pots — soil pored with gravel Pot I 1 by base} 1 by apex} same hole 1 rolled many in middle, nearer to base one has quite disappeared Pot II none drawn in March 13 Pot 1 1 by apex 1 rolled longitudinally to hole 1 1 doubled transversely to hole two others dirtied not drawn in Pot II 1 by apex 1 all angled up into ball I think entered by apex March 15th Pot 1 1 By base Pot II 1 by tip, 1 by base, 1 doubled M. 16 Pot I 1 by apex M. 17 Pot I 1 by

CUL-DAR65.60-63    Note:    1881.03.04--1881.03.11   Narrow Triangles of Paper — Worms in Pots [manner in which dragged into   Text   Image

March 8th (2) Worm in Pots Pot I 1 Broad by apex little doubled basal angles clean 1 B. by base — little in D 1 B by apex — 1.2 of tip doubled Pot II 1 Broad by base — (one entering disappeared I suppose narrow) March 9th Pot I I all crumpled going on surface, yet last night other paper were seen to drag the triangle into burrows Pot II see last night 1 in by base} 1 doubled by middle} same Hole 1 had been drawn in in lost to view, had been drawn in in by middle How differently these worms

CUL-DAR65.56-57    Note:    1881.03.06--1881.03.08   Worms in confinement / Triangles of Paper / Saw worm dragging broad   Text   Image

The Complete Work of Charles Darwin Online 56 March 6th 81 Worms in confinement Triangles of Paper 10˚Pm Saw worm dragging broad [triangle] by suction near base — also taking ends into mouth also engulfing whole apex. Tried often to drag one in by basal angles or by whole base into hole; did not succeed; - then tried a distant triangle took whole apex into mouth draw it quickly towards hole; then fixed itself a little way from apex dragged it short way into hole, then ceased walking drew

CUL-DAR65.83    Note:    [1881].03.26   Summary about the bending of basal angles of Triangles [with table]   Text   Image

draw in by base. This is conclusion that worms did not try first by base. 83

CUL-DAR139.17.7    Printed:    1881.04.18   Mr Darwin on vivisection `Times': [1 col]   Text   Image

man. Let it be remembered how many lives and what a fearful amount of suffering have been saved by the knowledge gained of parasitic worms through the experiments of Virchow5 and others on living animals. In the future every one will be astonished at the ingratitude shown, at least in England, to these benefactors of mankind. As for myself, permit me to assure you that I honour, and shall always honour, every one who advances the noble science of physiology. Dear Sir, yours faithfully, CHARLES

F1354    Periodical contribution:     Darwin, C. R. 1881. Mr Darwin on vivisection. British Medical Journal, London 1 (23 April): 660.   Text   Image   PDF

than man. Let it be remembered how many lives and what a fearful amount of suffering have been saved by the knowledge gained of parasitic worms through the experiments of Virchow and others on living animals. In the future, everyone will be astonished at the ingratitude shown, at least in England, to these benefactors of mankind. As for myself, permit me to assure you that I honour, and shall always honour, every one who advances the noble science of physiology.—Dear sir, yours faithfully, CHARLES

CUL-DAR139.17.6    Printed:    1881.05.02   Mr Darwin on vivisection `Zoophilist (special suppt)': 17-24   Text   Image

relief than man. Let it be remembered how many lives and what a fearful amount of suffering have been saved by the knowledge gained of parasitic worms through the experiments of Virchow and others on living animals. In the future every one will be astonished at the ingratitude shown, at least in England, to these benefactors of mankind. As for myself, permit me to assure you that I honour, and shall always honour, every one who advances the noble science of physiology. Dear Sir, yours faithfully

CUL-DAR210.3.25    Correspondence:   Darwin Emma née Wedgwood to Darwin George Howard  [1881.10.18]   Darwin Emma née Wedgwood to Darwin George Howard   Text   Image

fiery philippic against Parnell the most of his many speeches ─ I hope we may see Miss G. next week at Cam. hear about it ─ We had also a v. pleasant American Billings to luncheon on Sunday ─ He had a flavour of Tom Appleton about him, was very amusing as well as a clever man. F. is m pleased at the worms selling so well (they are printing more) at the good article in the Times. Poor Dubs had a [4

CUL-DAR226.1.71    Printed:    1881.10.22   Review of Earthworms `Lancet': 721-722   Text   Image   PDF

The Complete Work of Charles Darwin Online [page] 721 THE habits of worms and the purpose they fulfil in the economy of Nature do not at first sight appear to be very promising subjects of inquiry, nor likely to lead to interesting results; yet the work which has just been published by Mr. DARWIN, On the Formation of Vegetable Mould through the Action of Worms, 1 shows how the facts accumulated by a careful and accomplished observer may render an uninviting subject extremely interesting, and

CUL-DAR226.1.24    Printed:    1881.11.01   Review of Earthworms `Bookbuyer': [2 cols] (New York)   Text   Image   PDF

The Complete Work of Charles Darwin Online [page] VEGETABLE MOULD AND EARTHWORMS. By Charles Darwin, LL.D., F.R.S. John Murray. 9s. VERY few of the people who wantonly trample the humble worm under foot, or turn aside from it with loathing, have any conception of the wonderful part it plays in the scheme of Nature, and it has been reserved for that distinguished naturalist and profound student, Dr. Darwin, to open the eyes of his fellow-men to the poor worm's real significance. Darwin has done

CUL-DAR226.1.68[.1]    Printed:    1881.12.00   Review of Earthworms ` Journal of Forestry': [1 col]   Text   Image   PDF

somewhat repulsive appearance and troublesome habits of worms, which they will learn are more than redeemed by the important part they paly in the formation of the rich mould in which crops and plants of many kinds most delight to luxuriate. There are few books which will better repay perusal by the forester and every tiller of the earth, and we strongly commend it to all who are interested in productiveness of soils, as well as to those who devote their attention to the wonderful workings of the

F1362    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. 6th thousand (corrected). London: John Murray.   Text   Image   PDF

INDEX. Rolling down of dry castings, 278 Romanes, Mr., on the intelligence of animals, 97 Sachs on living roots corroding rocks, 245 Sage, leaves of, not eaten by worms, 34 Saliva, doubtful whether any secreted by worms, 44 Saussure, H. de, on brick-pebbles, 257 Schmulewitsch on the digestion of cellulose, 39 Scolopendra attacking worms, 65 Scott, Mr. J., on worms near Calcutta, 125 Seeds preserved in the burrows of worms, 117 Semper on various animals swallowing sand, 104 Senses of worms, 19

F1362    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. 6th thousand (corrected). London: John Murray.   Text   Image   PDF

HABITS OF WORMS. CHAP. I. but I fully agree with Perrier that this must be of quite subordinate importance, seeing that the object is already attained by stones being generally present in the gizzards and intestines of worms. [page] (57

F1362    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. 6th thousand (corrected). London: John Murray.   Text   Image   PDF

The Complete Work of Charles Darwin Online [spine] VEGETABLE  MOULD AND EARTH-WORMS DARWIN LONDON JOHN MURRAY. [inside front cover

F1364    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. Seventh thousand. Corrected by Francis Darwin. London: John Murray.   Text   Image   PDF

Hensen on number of worms living in a given area, 161 on the composition of mould, 240 on the amount of humus formed by two worms, 314 Henslow, Prof., on ledges on hill-sides, 281 Hoffmeister, number of species of worms, 9 on worms hybernating in company, 35 perception of light by worms, 20, 22 on the enemies of worms, 65 depth of burrows, 112 on hybernation of worms, 116 Hooker, Sir J., on ledges of earth on the Himalaya, 281 Horner, Mr., on castings in a cellar, 108 Humus acids, action of

F1362    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. 6th thousand (corrected). London: John Murray.   Text   Image   PDF

INDEX Peat, formation of, 241 Peewits beating the ground, 28 Percolation of earth into the chalk, 300 Perichæta, naturalized near Nice, 108 Perrier, worms surviving long immersion, 13 ─on the calciferous glands, 45 —on the action of the pharynx, 58 ─on the burrowing power of worms, 101 ─on naturalized worms, 108 ─on worms killed by acetic acid, 162 ─on the gizzards of worms, 249, 252 Petioles of Clematis, 80 ─of the ash, 81 Pharynx, action of, 58 Pike, stupidity of, 96 Pine-leaves used in

F1364    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. Seventh thousand. Corrected by Francis Darwin. London: John Murray.   Text   Image   PDF

of, not eaten by worms, 34 Touch, worms highly sensitive to, 29 Triangles of paper, 85 Trituration of particles of rock in the gizzards of worms, 252 Tumuli, ancient, 293 Tylor, Mr. A., on Denudation, 235 Tylor, Mr. E., on anciently ploughed land, 296 Typhlosolis, 19 Utricularia, bladders of, 111 Vibrations, worms sensitive to, 27 Vision, power of, in worms, 20 Wallace, Mr. J., on worm-burrows, p. 207. Walls, ancient, at Abinger, penetrated by worms, 190 penetrated by worms at Silchester, 211

F1362    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. 6th thousand (corrected). London: John Murray.   Text   Image   PDF

eaten by worms, 34 Touch, worms highly sensitive to, 29 Triangles of paper, 85 Trituration of particles of rock in the gizzards of worms, 252 Tumuli, ancient, 293 Tylor, Mr. A., on Denudation, 235 Tylor, Mr. E., on anciently ploughed land, 296 Typhlosolis, 19 Utricularia, bladders of, 111 Vibrations, worms sensitive to, 27 Vision, power of, in worms, 20 Walls, ancient, at Abinger, penetrated by worms, 190 ─penetrated by worms at Silchester, 211 Washing away of castings, 275 Wedgwood, Mr., on the

F1364    Book:     Darwin, C. R. 1882. The formation of vegetable mould, through the action of worms, with observations on their habits. Seventh thousand. Corrected by Francis Darwin. London: John Murray.   Text   Image   PDF

Pavements, ancient, subsidence of, at Silchester, 214 Peat, formation of, 241 Peewits beating the ground, 28 Percolation of earth into the chalk, 300 Perich ta, naturalized near Nice, 108 Perrier, worms surviving long immersion, 13 on the calciferous glands, 45 on the action of the pharynx, 58 on the burrowing power of worms, 101 on naturalized worms, 108 on worms killed by acetc acid, 162 on the gizzards of worms, 249, 252 Petioles of Clematis, 80 of the ash, 81 Pharynx, action of, 58 Pike