CONTENTS xv 



CHAPTER V 



ANIMAL-PLANTS AND SEA-WEEDS 



Sea-weeds have no strong branches to support their weight 

 Sea-weeds that are not sea-weeds Animal-plants The 

 structure of ditto Fossil species Mediterranean corals 

 The polypes Their resemblance to flowers and seeds 

 The hard red coral of necklaces, &c. Polypes the builders 

 and not man Algas, or sea-weeds proper Their structure 

 Algae with hard and stony fronds Lime-builders 



Pp. 108-131 



CHAPTER VI 



INSECTS' EGGS 



Eggs of insects present fascinating objects for microscopic inves- 

 tigation Maggots no longer supposed to be spontaneously 

 generated from putrefying substances Eggs of the common 

 house-fly Number of eggs deposited .varies Successive 

 generations and production of living young Aphides or 

 " green-flies " The hover-flies The lacewing-fly The 

 wonderful eggs of birds' parasites Structure of insects' eggs 

 Eggs of butterflies and moths Where found Instinct of 

 the mother insect Blunders made by insects in depositing 

 their eggs Varieties of form What purpose the artistic and 

 microscopic sculpturings may serve . . . Pp. 132-156 



CHAPTER VII 



ANIMAL PARASITES 



All living animals pestered more or less by parasites adapted to 

 prey upon them Insects no more exempt than larger ani- 

 mals Hyper-parasitism Parasites which require several 



