116 PROCEEDINGS OF THE ACADEMY OF [Maa>cl:i, 



''We mentioned that the Jordan dries up during the summer. We 

 found it dry September 2 in the afternoon, with the exception of 

 three or four pools. Most of the pools had fish in them. One in 

 particular, about ten feet long by three feet wide and its depth but 

 a few inches, was full of fish. In fact, it was filled so that the backs 

 of the catfish projected from the water. We lifted about fifty pounds 

 of fish out of this hole and transplanted them to a larger body of 

 water, taking all we thought necessary. It may be of interest to 

 state that this was the farthest up stream we took or saw trout- 

 perch. Having forgotten the camera, we concluded to return next 

 day and take photographs of the pool and some of the fish in the net- 

 Imagine our surprise when visiting the place the next morning to 

 find the bed of the stream covered with three to five feet depth of 

 water. We secured photographs further down stream, showing 

 some of the holes in the river bottom, through which the water 

 evidently disappears. Previous to arriving at this place we caught 

 some long-nosed dace, taken in swift water below a large spring. 

 When we say large spring we mean one that discharges thousands of 

 gallons of water per minute. 



"On September 22 we collected more trout -perch in the Jordan 

 at the original station, then went up stream to see if any more pools 

 formed. In the pool or depression where we took so many fish 

 during the last visit, the water evidently had just left, for some 

 catfish and killifish were still alive. Raccoons or minks had eaten 

 most of the larger fish, as fish heads and tails were still strewn about. 

 Another depression, at higher level, was still filled w4th water. Al- 

 together it is a remarkable stream, at one place dry, at another the 

 water runs eighteen inches deep, and so swift we could hardly keep 

 on our feet while crossing. We fished Lyon Valley also in the Jordan 

 and caught several fishes. It is about six miles up stream from the 

 first station at Helfrich's Springs." 



Other collections were made by the writer during the past season, 

 with the assistance of several gentlemen mentioned above, in Berks 

 County (Hay Creek and its tributary, as Beaver Creek at White Bear, 

 and tributaries at Geigertow^n and Cold Run, also tributary of the 

 Perkiomen at Hereford, and the Perkiomen at Pennsburg), Lehigh 

 County (tributary of the Little Lehigh River at Emaus, North 

 Branch of the Saucon Creek at Vera Cruz, Saucon Creek and tribu- 

 tary near Lanark, and Hosensack Creek at Hosensack). 



In the Susquehanna River basin during the past season collections 

 were made in August in Berks County (Conestoga Creek at Joanna 

 and tributary of Conestoga near Joanna Heights), and in Cumber- 

 land County in September, 1914 (Simmon's Run and its North 

 Branch, Conodoguinet Creek and tributary from Lamb's Gap), 

 and also Perry County (Fox Hollow, Fishing Creek, Cove Creek, and 

 Susquehanna River at Wister Island). In 1914 Dr. Witmer Stone 



