68 Scientific Intelligence. 
Part IV, On Cretaceous and Permery plants by Leo Lesquereux; 
On injurious Insects by A. 8. Packard, Jr. The Ar rheological 
reports contain ee descriptions of is ancient ruins in South- 
western Colorado and adjacent territori arge number of 
excellent plates, Busses both the distribution and character 
of the cliff houses, au also the remains of pottery and other 
implements found i nnection with them, besides admirable ; 
plans, sketches ae increase the value of the reports : 
eport contains als autiful colored geological maps of 
Colorado, and a third map giving the drainage of the Tervitory. — 
8. Bulletin of the United States Geological Survey of the Ter- : 
ritories; F. V. Haypsn, Geologist-in-char ge Vol. iv, No. 4.48 
This number of the Bulletin contains papers by 8. H. Scudder on : 
the fossil Insects of the Green River shales; by D. 58. Jordan on | 
Fishes of Dakota and Montana, seen a by ‘Dr. Coues ; ; by J. : 
Chickering on Plants of Dakota and Montana, collected by Dr. “ 
Coues; by F. M. Endlich on ae ee in Colorado ; ; by C. A. White — 
on the Laramie Group; by J. A. Allen on the American Sciuri or — 
arboreal squirrels. An index to volume iv closes the number. 
the Origin of Stylolites; by Epwarp T, NE zson. — 
Qeraminicated, )—During the past summer while spending a few — 
days at a Post of the Hudson’s Bay Company, called nee ides sit 
seri 
vertivally. pias top . gees the chase, at the time of van 
visit, was covered with stylolitic columns. In each case these cok 
umns reached from one stratum of clay to the next below, and 
hence varied in height from two inches to as many feet. During — 
the first afternoon it was yok? gently. The water falling ove 
Srom benea & thie way aa stratum of sa aoa presented the 
same projections ee crevices as es covering layer of clay. 
soon sun came ou sed edges of the stylolites 
perfectly preserved colum The inner face of the talus was, ’ 
of course, the exact eines of the stylolites. a 
Ohio Wesleyan a Oct. 22d 
5. Bowlders in Coal. pater a recent geological excursio? 
with the netting class of Denison University, I found at New 
Straitsville, Perry County, ne a bowlder of hard gritty sand- 
i i m oal, 
