92 REPORT OF STATE GEOLOGIST. 



coldest weather of the season. The remaining 110 are migrants; birds 

 which regularly pass through the counties, northward bound in Spring 

 and again southward bound in Autumn. The majority of the water 

 fowl and warblers and a number of sparrows, thrushes and vireos are 

 s members of this class. 



But few notes concerning the reptilian fauna were secured. The 

 Reptilia P^^^^^^ rattlesnake still exists in small numbers; and prob- 

 ably 15 kinds of harmless snakes occur in the two counties. 

 Among the sand dunes the six-lined lizard, Cnemidophorm sedineatus 

 (L.), was quite common. They scampered swiftly from one clump 

 of grass to another; so swiftl}^, in fact, that a great deal of maneuver- 

 ing was necessary to capture one with a butterfly net. This species 

 has been heretofore considered rare in Indiana, having been recorded 

 only from Knox and IMonroe counties. The four varieties of lizard 

 mentioned by Ball* were probably salamanders, since he states that 

 they live in dark cellars. Ten or more species of this group probably 

 occur in the counties. They can be readily told from lizards by their 

 having the skin smooth instead of covered with scales. They also 

 pass through a larval (tadpole) stage, while the lizard undergoes no 

 such change. Sixty or more species of fish doubtless occur in the 

 streams and lakes of the area. 



NOTES ON THP: FLORA OF LAKE AND PORTER COUNTIES. 



While engaged iu gathering data concerning the surface geology, notes 

 were taken and specimens secured of a number of the scarcer and more 

 characteristic plants of the two counties, especially those of the Calumet 

 area, and the immediate margin of Lake Michigan. For the most part 

 these notes pertain only to such plants as were in bloom in July and 

 September, and to those whose distribution in Indiana is restricted to 

 this region of the State. But little attention was given to the forms 

 common to the entire State, as it is impossible for any one to gather data 

 for anything like a complete flora of such an area, unless he is able to 

 spend the greater part of several seasons in careful investigation. 



The flora of the sand dune area is especially interesting and has been 

 studied in the past by Rev. E. J. Hill, of Englewood, 111., who has found 

 there a number of species not elsewhere recorded from Indiana. Messrs. 

 Higley and Raddin, in their " Flora of Cook County, Illinois, and a parL 

 of Lake County, Indiana,"t have published the results of much of M -. 

 Hill's work, as has also Stanley Coulter in the Proceedings of the Indiana 

 Aciideniy of Science for 1895. 



■' Lake County, 1884, 155. 

 ■ t Bull. Chic. Acad. Sci., 1 1, No. 1, 1891. This paper included the flora of that portion of 

 Lake County lying north of the Little Calumet River. Reference to the paper in thes? 

 notes will be.by the initials IL <&»R. 



