132 THE NA TURE-STUD Y RE VIE W [6:5-May, 1910 



bird, and killdeer. Fifteen different species of birds were seen. 

 The Wilson's Fern was entirely new to the members of the 

 club. On this trip the boys organized the club. 

 SECOND TRIP — LINCOLN PARK 



In Lincoln Park we spent our time seeing the caged wild 

 animals. Some of the boys seemed not to appreciate this trip, 

 as they said: "We have seen these so often; let's go to the 

 country." The things taking most attention were the young 

 of the animals, lions, leopards, two buffalo calves, baby mon- 

 keys, etc. An old duck with a bunch of newly hatched duck- 

 lings aroused more interest than any other feature in the park. 

 THIRD TRIP — DES PLAINES RIVER, FLOOD PLAINS 



West of the city in the Des Plaines valley is a typical flood- 

 plain forest- As yet few of the trees have been cut. Large 

 elms, ashes, hickories, and walnuts predominate. Here, too, 

 we examined the fauna of a rotten log. We found millipedes, 

 centipedes, snails, ants, woodborers, and larvae of many be-etles 

 and earthworms. The ants were of the species which keep 

 ''aphid cows." Probably ants and their habits are amongst the 

 easiest things in nature in which to interest boys. 

 FOURTH TRIP — MILLERS, IND. 



At Millers, Indiana, we made an all day's trip. We set out 

 diagonally from Millers through the scrub pine forest, aiming 

 to skirt the "blind" end of the Calumet River. We ate our 

 lunch in the forest and after walking for more than an hour 

 were surprised to come again to the place where we had eaten 

 our lunch. We climbed a tree on top of one of the dunes, got 

 our bearings and soon reached the lake. The boys celebrated 

 the event by taking a good swim in the lake. On this trip we 

 saw the white pine, the juniper, the scrub oak, and the scrub 

 pine. The prickly pear cactus was in full bloom and a photo- 

 graph of it was taken. 



At 90th Street and Stony Island is a bare outcrop of Niagara 

 limestone. In the past there were two stone quarries here but 

 now they are deserted and contain water. In one of these we 

 caught a fairly large "bullhead" with our hands. We found 

 here a large "cat-tail" swamp miles in extent. Where the lime- 

 stone came to the surface the scratches of the old glacier were* 

 easily seen. 



SIXTH TRIP — WOLF LAKE, IND. 



In the recent geological past Lake Michigan, by its reces- 

 sion, left many interesting regions. One of these is a strip of 



