SUMMARY. PHYSIOGNOMY OF PLANTS. XXV 



boundary of perpetual snow, thus Saxifraga Boussingaulti to 15,773 feet 

 above the level of the sea. Groups of phanerogamic Alpine plants in the 

 Andes chain at from 13,700 to nearly 15,000 feet high. Species of Cul- 

 citium, Espeletia, Eanunculus, and small moss-like umbellifera, Myrrhis 

 andicola, and Fragosa arctioides— pp. 233-234. Measurement of Chim- 

 horazo, and etymology of the name— p. 234-236. On the greatest 

 absolute height to which men in both continents, in the Cordilleras and 

 the Himalaya, — on the Chimborazo and Tarhigang — have as yet ascended 

 —p. 236. 



Economy, habitat, and singular mode of capturing the Condor 

 (Ountur, in the Inca language) by means of' palisades — pp. 237-239. 

 Use of the Gallinazos (Cathartes uriibu and C. aura) in the economy of 

 nature, for purifying of the air in the neighbourhood of human dwell- 

 ings; their domestication — pp. 239-240. 



On the so-called revivification of the rotifera, according to Ehrenberg 

 and Doyere; according to Payen, germs of Cryptogamia retain their 

 power of reproduction in the highest temperature — pp. 240-241. 



Diminution, if not total suspension, of organic functions in the 

 winter-sleep of the higher classes of animals — p. 242. Summer-sleep 

 of animals in the tropics. Drought acts like the cold of winter. 

 Tenrecs, Crocodiles, Tortoises, and East- African Lepidosirens — pp. 

 242-244. 



Pollen, Fructification of Plants. The experience of many years 

 concerning the Coelebogyne ; it brings forth mature seeds in England 

 without a trace of male organs — pp. 244-245. 



The phosphorescence of the Ocean through luminous animals as 

 well as organic fibres and membranes of the decomposing animalculae. 

 Acalculias and siliceous-shelled luminous infusoria. Influence of ner- 

 vous irritability on the coruscation— pp. 245-250. 



Pentastonia, inhabiting the lungs of the rattle-snake of Cumana — 

 p. 251. 



Ptock-constructing Coral animals. The structure surviving the archi- 

 tects. More correct views of the present period. Coast-reefs, Eeefs sur- 

 rounding islands and Lagoon-islands. Atolls, Coral walls inclosing a 

 lagoon. The royal gardens of Christopher Columbus, The Coral Islands 

 south of Cuba. The living gelatinous coating of the calcareous fabric 

 of the coral-stems allures fishes in quest of food, and also turtles. 

 Singular mode of fishing with the liemora, Echeneis Naucrates (the 

 little angling fish)— pp. 251-258. 



Probable depth of the coralline structures — pp. 258-260. Besides a 

 great quantity of carbonate of lime and magnesia, the madrepores and 

 Astreaa contain also some fluoric and phosphoric acid — pp. 260-261. 

 Oscillating state of the sea-bottom according to Darwin — pp. 261-262. 



Irruptions of the sea. Mediterranean Sea. Sluice-theory of Strato. 

 Samothracian legends. The Myth of Lyctonia and the submerged 

 Atlantis— pp. 262-266. Concerning the precipitation of clouds — 



