288 TlMEHRI. 
5. Leaf insect, allied to the locusts, presented by Mr. James Winter, 
and from the Massaruni. The anterior wings are perfectly leaf-like in 
colour and form, the colour assimilating that of a leaf in process of 
decay,— a fading leaf bearing a large central vein, lateral reticulate 
veins, and brownish spots. When at rest, the hinder wings are folded 
together as in a fan, with the anterior wings laid upon them, so that to 
its enemy a pair of leaves alone is to be seen and not an insect. 
6. Lantern fly, Guiana, presented by Mr. G. S. Jenman. The front 
portion of head is immensely produced to form a thick proboscis, which 
is said to be phosphorescent. This luminosity though is open to 
doubt. Certain travellers have kept them in captivity with no experi- 
ence of their luminosity, but Madame Marion in her account of the 
inserts of Surinam states that she observed it, and that it was almost 
enough to allow one to read. It is allied to the six o'clock beetle. 
7. Specimen of the common migratory locust of central Europe, 
Cyprus locust, Berbice locusts male and female and Venezuela 
locusts. The Berbice and Venezuela locusts appear to belong 
to the same genus as the United States species. Remedy must 
depend upon their abundance and the kind of country in which 
they are found. In Cyprus they are exterminated by means of 
an arrangement of screens and pits, and in the United States by means 
of tanks of kerosine and coal tar. Egg collection has also been com- 
bined in both cases, though not satisfactorily. 
8. Live specimens of a very ancient and remarkable type of life. — 
Peripatus, a worm-like, or caterpillar-like animal, slightly ringed with 
lateral feet and two snail-like feelers, or antennas. The nervous 
system is a remarkable ancient type intermediate between the lowest 
worms and the insect group. The respiratory system is by air tubes, 
which open irregularly over the body not as in other tracteate animals 
along the side of the body by special pores. The development of this 
type of life is at present not well known. It is to be found in decaying 
wood in moist positions. The specimens exhibited were found in the 
Pomeroon district, where they were previously obtained by Mr. im Thurn. 
Other specimens have been obtained in the Hoorabea creek. 
Regarding the preservation of the natural appearance 
of fruit, as suggested by Mr. Hawtayne, Mr. Quelch 
exhibited the results of experiments he had been making 
with various preserving liquids, and asked for further 
