JULY, 1902. 
BRU>'CKEX — STUDIES IX PLANT DISTRIBUTIOX. 
145 
20. Ramiiiculus delphinifoliiis Torr. 
24. Roripa nasturtium (L.) Rushy. 
30. Geum virginiamnn L. 
34. Hypericum prolificmn L. 
42. Ciciita bulb if era L. 
43. Cornus candidissima Marsh. 
47. Steironerna quadrifloruui Hitchc. 
g. On the ledges of Limestone rock were found : 
4. Cystopteris biilbifera (L.) Bernh., Fish Creek. 
17. Aquilegia canadensis L., Egg Harbor. 
31. Geranium robertianum L., Baileys Harbor. 
h. On the sandy beach : 
28. Potentilla anserina L., Fish Creek. 
46. Primida mistassinica Michx., Egg Harbor. 
i. On cultivated lands : 
58. Erigeron annuus (L.) Pers., Fish Creek. 
62. Crysanthemum leucanthemum L., Fish Creek. 
40. Chamaerion angustifolium (L.) Scop., Fish Creek. 
33. Malva moschata L., Baileys Harbor. 
The specimens collected as above are now in the herbarium 
of the Public Museum of Milwaukee. The determination of the 
species is mostly the work of Miss Olive Wheeler of the Museum. 
The numbers refer to the original list in possession of the writer. 
5. Forests and Brush Lands of Northern Waukesha County, "Wisconsin. 
The following observations refer more particularly to that 
part of Waukesha County lying north of the line of the Chicago 
& Northwestern Railway, which divides the county into two al- 
most equal parts. It comprises therefore most of the Lake Region 
and the country to the east of that. The extreme west, which is 
really a part of the Rock River Valley, is omitted. There is no 
reason to believe that the southern half of the county is materially 
different in botanical or forestal character. 
The physiography of the eastern part of the district is essen- 
tially alike to the western half of Milwaukee County: Rolling 
country with a subsoil of boulder clay, which allows but very few 
outcrops of the underlying limestone rock. Many of the gravel 
hills are drumloid in character, others irregular in shape. The 
western half is characterized by the great accumulation of morai- 
nic hills and ridges, with corresponding: depressions, which is 
popularly known as the Kettle Range. The highest elevation of 
