The Relation of Science and Religion.pdf - Online Christian Library
The Relation of Science and Religion.pdf - Online Christian Library The Relation of Science and Religion.pdf - Online Christian Library
HIGHER ORGANISMS. 20'7progress, or causing movement i11 an oppositedirection. Now these two characteristics-sensibilityto impression from without,and moveinent caused by an exercise of energyfrom within the organisill itself-are bothprovided for by means of the nerve systembelonging to the animal. This nerve systemvaries in the number and coinplexity of itsarrangements, according. to the compleaxityof the organism with which it is associated.As, therefore, we rise in the scale, passingfrom the soft pulpy form of the lowest orders,to those formed in segments or rings, nextto those with distinct portions of organismfulfilling separate functions, as in insect life,wit11 head, body, and legs; and next pass upto the vertebrates, with back-bone and skeleton,on which is built up a more or less complicatedmuscular system, we find a nervesystem, growing in complexity along with theappearance of different orgalls of the body.And in all cases, this system fulfils these twofunctions-sensibility to touch, and movementof the body. These two are providedfor by distinct lines or nerve fibres; and inall cases, these two sets are conibined in acentre, thereby securing that the two sets
208 SCIENCE AND RELIGION.be codperative, unitedly contributing to themanagement of the living organism. Thisappears even if we take for illustration an organismso low as the ascidian nzollusk, whichfloats in the water as if it were a sack drawntogether towards the top, bulging out below;and which is nourished simply by the passingof a current of water in at the mouth, andout at a vent towards the lower end of thesac. A series of nerve lines comes from themouth; a distinct ramification spreads overthe lower portion of the sac; and these twoare united in a single knot or ganglion, alittle above the vent. By these contrivances,this little body, t,hough for the most part stationary,is sensitive to the approach of anything injurious, and by contraction of its massexpels the water with considerable force,driving the injurious matter to a distance.This combination of the two sets of nervesappears more strikingly in such an animalas the centipede, along whose body are successivegroups of nerves, combined in regularorder in a series of knots, and unitedlongitudinally by connecting t.hreads, attachingthe successive knots. The same plan iscarried up into a more articulated form in
- Page 178 and 179: LIFE AND ITS DE EEL OPIMENT. 157Thi
- Page 180 and 181: countered and leads to survival of
- Page 182 and 183: LIFE AND ITS DEVELOPMENT. 161time,
- Page 184 and 185: RELA TIOOYS OF ORGANISMS. 163tinct
- Page 186 and 187: XELA TrONS OF ORGANISMS. 165is a me
- Page 188 and 189: RELATIONS OF ORGANISMS. 167other fl
- Page 190 and 191: RELATIONS OF ORGANISMS. 169not come
- Page 192 and 193: RELATlONS OF ORGANISMS. 171deep has
- Page 194 and 195: RELA TZONS OF ORGANISMS. 173tioil o
- Page 196 and 197: RELATIONS OF ORGANISMS. 175head is
- Page 198 and 199: RELATIONS OF ORGANISMS. 177tears of
- Page 200 and 201: RELATIONS OP ORGANISMS. 179vention
- Page 202 and 203: RELATIONS OF ORGANISMS. 181which ha
- Page 204 and 205: RELATIONS OF ORGANISMS. 183these se
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- Page 208 and 209: XEL A TZONS OF ORGANISMS. 187nectio
- Page 210 and 211: RBLA TIONS OF ORGANISMS. 189ence. O
- Page 212 and 213: RELATIONS OF ORGANISMS. 191his obse
- Page 214 and 215: RELATIONS OF ORGANISMS. 193insects,
- Page 216 and 217: RBLAT'NS OF ORGANISMS. 195must conf
- Page 218 and 219: RELATIONS OR ORGANISMS. 197in by th
- Page 220 and 221: RELATIONS OF ORGANISMS. 199of desol
- Page 222 and 223: RELATIONS OF ORGANISMS. 201portance
- Page 224 and 225: XELA TIONS OF ORGANISMS. 203Whether
- Page 226 and 227: HIGHER ORGANISMS. 205measure of suc
- Page 230 and 231: HIGHER ORGANISMS. 209the case of th
- Page 232 and 233: HIGHER ORGANISMS. 211other fibres l
- Page 234 and 235: HIGHER ORGANISMS. 213regarded as se
- Page 236 and 237: HIGHER ORGANISMS. 215sisting of a m
- Page 238 and 239: HIGHER ORGANISMS. 217placed underne
- Page 240 and 241: HIGHER ORGANISMS. 219view as we asc
- Page 242 and 243: HIGHER ORGANISMS. 221what to the si
- Page 244 and 245: HIGBER ORGANISMS. 223is given to th
- Page 246 and 247: simpler in tlie arrangement of its
- Page 248 and 249: HIGHER ORGANISMS. 227of the organ a
- Page 250 and 251: HIGHER ORGANISMS. 229with the fanci
- Page 252 and 253: HIGHER ORGANISMS. 231of opinion con
- Page 254 and 255: many cases a decided bark is emitte
- Page 256 and 257: HIGHER ORGANISMS. 235excitation occ
- Page 258 and 259: HIGHER ORGANISMS. 237tinues in full
- Page 260 and 261: LECTURE QII.MAN'S PLACE M THE WORLD
- Page 262 and 263: JfAy'S PLACE IN TKE WOELB. 241comes
- Page 264 and 265: MAN'S PLACE IN TNE WORLD. 243yet be
- Page 266 and 267: MAN'S PLACE IN THE WORLD. 245i~npli
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- Page 270 and 271: MAN'S PLACE IN THE WORLD. 249It mus
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208 SCIENCE AND RELIGION.be codperative, unitedly contributing to themanagement <strong>of</strong> the living organism. Thisappears even if we take for illustration an organismso low as the ascidian nzollusk, whichfloats in the water as if it were a sack drawntogether towards the top, bulging out below;<strong>and</strong> which is nourished simply by the passing<strong>of</strong> a current <strong>of</strong> water in at the mouth, <strong>and</strong>out at a vent towards the lower end <strong>of</strong> thesac. A series <strong>of</strong> nerve lines comes from themouth; a distinct ramification spreads overthe lower portion <strong>of</strong> the sac; <strong>and</strong> these twoare united in a single knot or ganglion, alittle above the vent. By these contrivances,this little body, t,hough for the most part stationary,is sensitive to the approach <strong>of</strong> anything injurious, <strong>and</strong> by contraction <strong>of</strong> its massexpels the water with considerable force,driving the injurious matter to a distance.This combination <strong>of</strong> the two sets <strong>of</strong> nervesappears more strikingly in such an animalas the centipede, along whose body are successivegroups <strong>of</strong> nerves, combined in regularorder in a series <strong>of</strong> knots, <strong>and</strong> unitedlongitudinally by connecting t.hreads, attachingthe successive knots. <strong>The</strong> same plan iscarried up into a more articulated form in
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