THE NEW ZEALAND GLOW-WORM.
Everybody has not seen one, but we all have read about the Glow-worm, the remarkable insect which has the power of exhibiting a bright light in the dusk of evening. In England we have two species of insects that are called by this name, which properly belongs only to a kind of wingless beetle, found along the hedgerows and moist banks during the summer. The other insect which shares the name is also known as the electric centipede; it is seen about gardens or fields, and has the peculiarity of leaving upon the path it has trodden a shining track.
In New Zealand there is a very curious glow-worm. The first idea about this insect was that it turned into a kind of beetle; afterwards it proved to be the larva or grub of a fly. Its light is seemingly given it to attract small insects which are its food, and these are secured by means of a web. This web is placed in a niche amongst rocks or trees, and has a central thread, from which run smaller threads to the sides of the opening. Upon several of the lower threads there are usually a number of globules that resemble tiny silver beads, but what is the use of these is uncertain. Upon the middle thread the grub sits; if startled, it glides away into a hole it has for a hiding-place. The light comes from the hinder part of the body, and the grub can display or darken this as it chooses. On damp, warm nights it is brightest, and it is not visible when the weather is cold, nor, of course, during the day. Having reached its full size, the grub becomes a chrysalis, being fastened firmly to its web. A faint light comes from the chrysalis now and then. When the fly comes out, that also has a faint light, only half as bright as that of the grub; what it feeds upon is unknown.
THE GIANT OF THE TREASURE CAVES.
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CHAPTER XVIII.
Mrs. Wright had been waiting in great anxiety for the return of Jack. Twenty times over she went to the end of the sandy path to see if the tide was going out, and returned in an anxious state of mind to make preparations for the drenched party. She reproached herself bitterly for carelessness. How could she have trusted so entirely to Julien? She ought to have known he was ignorant of the tides, if not of the caves. Her anxiety was almost more than she could bear by the time the tide had left the gorge. Then she stood on the beach to watch, and it was with a cry of delight that she saw the three coming towards her.
They were all glad of the hot meal which smoked upon the table in readiness for their return, and sat down in very cheerful spirits, in spite of their damp condition. But it was not so pleasant to be hurried off immediately afterwards to bed and warm blankets. Julien, who had not shown much appetite, and still looked pale and shivery, refused to go to bed. Jack would have compelled him, but the boy begged to be allowed to go home, as he felt ill. It really seemed the best thing to do; so, wrapping him up in a big coat, Jack took him to the Préfet's house, and handed him over to his mother's care, not forgetting to say a few words in praise of the courage the boy had shown.
'Now, Jack,' said Mrs. Wright, as he entered the warm kitchen on his return, 'if you want to do something to please me, my son, you will just go and take your wet things off, and turn in for a bit. I will bring you some hot cocoa in a minute.'