Chapter 10

[76]Naturalis Historia, lib. ix. cap. 30.

[76]Naturalis Historia, lib. ix. cap. 30.

[77]Appendix to Sir Edward Belcher's 'Voyage of the "Samarang,"' by Mr. Arthur Adams, assistant surgeon to the expedition.

[77]Appendix to Sir Edward Belcher's 'Voyage of the "Samarang,"' by Mr. Arthur Adams, assistant surgeon to the expedition.

[78]'The Octopus,' 1873, p. 57.

[78]'The Octopus,' 1873, p. 57.

[79]"At 100 fathoms the pressure exceeds 265 lbs. to the square inch. Empty bottles, securely corked, and sunk with weights beyond 100 fathoms, are always crushed. If filled with liquid the cork is driven in, and the liquid replaced by salt water; and in drawing the bottle up again the cork is returned to the neck of the bottle, generally in a reversed position."—Sir F. Beaufort, quoted by Dr. S. P. Woodward in his 'Manual of the Mollusca.'

[79]"At 100 fathoms the pressure exceeds 265 lbs. to the square inch. Empty bottles, securely corked, and sunk with weights beyond 100 fathoms, are always crushed. If filled with liquid the cork is driven in, and the liquid replaced by salt water; and in drawing the bottle up again the cork is returned to the neck of the bottle, generally in a reversed position."—Sir F. Beaufort, quoted by Dr. S. P. Woodward in his 'Manual of the Mollusca.'

[80]I need hardly say that before the nacreous layer of the shell from which this animal takes its name is made visible, an outer deposit of dense calcareous matter has to be removed by hydrochloric acid: the pearly surface thus exposed is then easily polished.

[80]I need hardly say that before the nacreous layer of the shell from which this animal takes its name is made visible, an outer deposit of dense calcareous matter has to be removed by hydrochloric acid: the pearly surface thus exposed is then easily polished.

[81]It is so interesting to most of us to know something of the early work of our greatest men, and of the tide in their affairs, which, taken at the flood, led on to fortune, that I hope I may be excused for referring to the period when the distinguished chief of the Natural History Department of the British Museum, the great comparative anatomist, the unrivalled palæontologist, the illustrious physiologist, the venerable and venerated friend of all earnest students, was beginning to attract the attention, and to receive the approbation of his seniors as a promising young worker. In Messrs. Griffith and Pidgeon's Supplement to Cuvier's 'Mollusca and Radiata,' published in 1834, the treatise in question is thus mentioned: "We have much pleasure in referring to a most excellent memoir onNautilus pompilius, by Mr. Owen, with elaborate figures of the animal, its shell, and various parts, published by direction of the Council of the College of Surgeons. The reader will find the most satisfactory information on the subject, and the scientific public will earnestly hope that the present volume will be the first of a similar series." This hope has been more than fulfilled. Dean Buckland, in his 'Bridgewater Treatise,' wrote of this work: "I rejoice in the present opportunity of bearing testimony to the value of Professor Owen's highly philosophical and most admirable memoir—a work not less creditable to the author than honourable to the Royal College of Surgeons, under whose auspices the publication has been so handsomely conducted."

[81]It is so interesting to most of us to know something of the early work of our greatest men, and of the tide in their affairs, which, taken at the flood, led on to fortune, that I hope I may be excused for referring to the period when the distinguished chief of the Natural History Department of the British Museum, the great comparative anatomist, the unrivalled palæontologist, the illustrious physiologist, the venerable and venerated friend of all earnest students, was beginning to attract the attention, and to receive the approbation of his seniors as a promising young worker. In Messrs. Griffith and Pidgeon's Supplement to Cuvier's 'Mollusca and Radiata,' published in 1834, the treatise in question is thus mentioned: "We have much pleasure in referring to a most excellent memoir onNautilus pompilius, by Mr. Owen, with elaborate figures of the animal, its shell, and various parts, published by direction of the Council of the College of Surgeons. The reader will find the most satisfactory information on the subject, and the scientific public will earnestly hope that the present volume will be the first of a similar series." This hope has been more than fulfilled. Dean Buckland, in his 'Bridgewater Treatise,' wrote of this work: "I rejoice in the present opportunity of bearing testimony to the value of Professor Owen's highly philosophical and most admirable memoir—a work not less creditable to the author than honourable to the Royal College of Surgeons, under whose auspices the publication has been so handsomely conducted."

[82]Riva, 1559, leaf 142.

[82]Riva, 1559, leaf 142.

[83]'Historia Simplicium,' lib. iii. p. 327.

[83]'Historia Simplicium,' lib. iii. p. 327.

[84]Prodrom. Hist. Nat. Scot. parts 2, lib. iii. p. 21, 1684.

[84]Prodrom. Hist. Nat. Scot. parts 2, lib. iii. p. 21, 1684.

[85]Otia Imperialia, iii. 123.

[85]Otia Imperialia, iii. 123.

[86]For this quotation and the following one I am indebted to Professor Max Müller's Lecture before referred to.

[86]For this quotation and the following one I am indebted to Professor Max Müller's Lecture before referred to.

[87]'Chorographical Description of Norway,' p. 244.

[87]'Chorographical Description of Norway,' p. 244.

[88]Æneas Sylvius gives us information concerning the personal appearance of his royal host, whom he describes as, "hominem quadratum et multa pinguedine gravem,"—literally, "a square-built man, heavy with much fat."

[88]Æneas Sylvius gives us information concerning the personal appearance of his royal host, whom he describes as, "hominem quadratum et multa pinguedine gravem,"—literally, "a square-built man, heavy with much fat."

[89]'Cosmographia Universalis,' p. 49, 1572.

[89]'Cosmographia Universalis,' p. 49, 1572.

[90]The original of this picture is a small wood-cut in Matthias de Lobel's 'Stirpium Historia,' published in 1870. The birds within the shells were added by Gerard. Aldrovandus, in copying it, gave leaves to the tree, as shown onpage 110.

[90]The original of this picture is a small wood-cut in Matthias de Lobel's 'Stirpium Historia,' published in 1870. The birds within the shells were added by Gerard. Aldrovandus, in copying it, gave leaves to the tree, as shown onpage 110.

[91]Exercit. 59, sect. 2.

[91]Exercit. 59, sect. 2.

[92]'Museum,' p. 257.

[92]'Museum,' p. 257.

[93]'Physica Curiosa, sive Mirabilia Naturæ et Artis,' 1662, lib. ix. cap. xxii. p. 960.

[93]'Physica Curiosa, sive Mirabilia Naturæ et Artis,' 1662, lib. ix. cap. xxii. p. 960.

[94]'Ornithologia,' lib. xix. p. 173, ed. 1603.

[94]'Ornithologia,' lib. xix. p. 173, ed. 1603.

[95]'De Volucri Arborea,' 1629.

[95]'De Volucri Arborea,' 1629.

[96]Du Bartas' "Divine Week" p. 228. Joshua Sylvester's translation.

[96]Du Bartas' "Divine Week" p. 228. Joshua Sylvester's translation.

[97]If any of my readers wish to observe the development of young barnacles they may easily do so. The method I have generally adopted has been as follows: Procure a shallow glass or earthenware milk-pan that will hold at least a gallon. Fill this to within an inch of the top with sea-water, and place it in any shaded part of a room—not in front of a window. Put in the pan six or eight pebbles or clean shells of equal height, say 1½ or 2 inches, and on them lay a clean sheet of glass, which, by resting on the pebbles, is brought to within about 2½ inches of the surface of the water. Select some limpets or mussels having acorn-barnacles on them; carefully cut out the limpet or mussel, and clean nicely the interior of the shell; then place a dozen or more of these shells on the sheet of glass, and the barnacles upon them will be within convenient reach of any observation with a magnifying glass. If this be done in the month of March, the experimenter will not have to wait long before he sees youngBalaniejected from the summits of some of the shells. Up to the moment of their birth each of them is enclosed in a little cocoon or case, in shape like a canary-seed, and most of them are tossed into the world whilst still enclosed in this. In a few seconds this casing is ruptured longitudinally, apparently by the struggles of its inmate, which escapes at one end, like a butterfly emerging from its chrysalis, and swims freely to the surface of the water, leaving the split cocoon or case at the bottom of the pan. Some few of the young barnacles seem to be freed from the cocoon before, or at the moment of, extrusion. From three to a dozen or more of these escape with each protrusion of the cirri of the parent, and as the parturient barnacle will put forth its feathery casting net at least twenty times in a minute for an hour or more, it follows that as many as ten thousand young ones may be produced in an hour. These, as they are cast forth at each pulsation of the parent's cirri, fall upon the clean sheet of glass, and may be taken up in a pipette, and placed under a microscope, or removed to a smaller vessel of sea-water, for minute and separate investigation. It seems strange that animals which, like the oyster and the barnacles, are condemned in their mature condition to lead so sedentary a life, should in the earlier stages of their existence swim freely and merrily through the water—young fellows seeking a home, and when they have found it, although their connubial life must be a very tame one, settling down, and not caring to rove about any more for the remainder of their days. These youngBalanidart about like so many water-fleas, and yet, after a few days of freedom, they become fixed and immovable, the inhabitants of the pyramidal shells which grow in such abundance on other shells, stones, and old wood.

[97]If any of my readers wish to observe the development of young barnacles they may easily do so. The method I have generally adopted has been as follows: Procure a shallow glass or earthenware milk-pan that will hold at least a gallon. Fill this to within an inch of the top with sea-water, and place it in any shaded part of a room—not in front of a window. Put in the pan six or eight pebbles or clean shells of equal height, say 1½ or 2 inches, and on them lay a clean sheet of glass, which, by resting on the pebbles, is brought to within about 2½ inches of the surface of the water. Select some limpets or mussels having acorn-barnacles on them; carefully cut out the limpet or mussel, and clean nicely the interior of the shell; then place a dozen or more of these shells on the sheet of glass, and the barnacles upon them will be within convenient reach of any observation with a magnifying glass. If this be done in the month of March, the experimenter will not have to wait long before he sees youngBalaniejected from the summits of some of the shells. Up to the moment of their birth each of them is enclosed in a little cocoon or case, in shape like a canary-seed, and most of them are tossed into the world whilst still enclosed in this. In a few seconds this casing is ruptured longitudinally, apparently by the struggles of its inmate, which escapes at one end, like a butterfly emerging from its chrysalis, and swims freely to the surface of the water, leaving the split cocoon or case at the bottom of the pan. Some few of the young barnacles seem to be freed from the cocoon before, or at the moment of, extrusion. From three to a dozen or more of these escape with each protrusion of the cirri of the parent, and as the parturient barnacle will put forth its feathery casting net at least twenty times in a minute for an hour or more, it follows that as many as ten thousand young ones may be produced in an hour. These, as they are cast forth at each pulsation of the parent's cirri, fall upon the clean sheet of glass, and may be taken up in a pipette, and placed under a microscope, or removed to a smaller vessel of sea-water, for minute and separate investigation. It seems strange that animals which, like the oyster and the barnacles, are condemned in their mature condition to lead so sedentary a life, should in the earlier stages of their existence swim freely and merrily through the water—young fellows seeking a home, and when they have found it, although their connubial life must be a very tame one, settling down, and not caring to rove about any more for the remainder of their days. These youngBalanidart about like so many water-fleas, and yet, after a few days of freedom, they become fixed and immovable, the inhabitants of the pyramidal shells which grow in such abundance on other shells, stones, and old wood.

[98]See the quotation from Hector Boethius, p. 101.

[98]See the quotation from Hector Boethius, p. 101.

[99]'Historia Animalium,' lib. iii. p. 110.

[99]'Historia Animalium,' lib. iii. p. 110.

[100]'History of Animals,' p. 422. 1752.

[100]'History of Animals,' p. 422. 1752.

Transcriber's note:Inconsistent hyphenation has been left as written.Missing end quote marks have been inserted.Onpage 95the word irreconcileable has been left as written: "I need scarcely point out how utterly irreconcileable is the"Onpage 30the word gowden has been left as written: "Braiding her locks of gowden hair"Onpage 20the word fane has been left as written: "exactly resembled the tail of a fish, with a broad fane"Onpage 33the word engulphed has been left as written: "were all suddenly engulphed in the waves on the night of the battle"


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