8 IOWA ACADEMY OF SCIENCES. 



E. H. Lonsdale— Southern Extension of the Cretaceous in Iowa. Topog- 



raphy of the Granite and Porphyry Areas in Missouri. 

 A. G. Leonard— Zinc Deposits in Northeastern Iowa. Satin Spar from 



Dubuque. 

 A. C. Spencer— Occurrence in Iowa of Fossiliferous Concretions Similar to 



those of Mazon Creek. 



F. M. FuLTZ— Evidences of Disturbances During the Deposition of the Bur- 



lington Limestones. 



A. J. Jones— The Coal Measures of Poweshiek County. On the Occurrence 



of Cardiocarjms in Iowa. 



T. H. McBride— Notes on the North American Cycads. The Distribution 

 of Bhtis lyphina. 



L. H. Pammel — Presidential Address— Bacteria, Their Relation to Modern 

 Medicine, the Arts and Industries. Powdery Mildew of the Apple. 

 Further notes on Cladosporiuni carpophihirn. 



Mary Alice Nichols— Observations on the Pollination of some of the 

 Com2yosilce. 



B Fink — Some Additions to the Flora of Iowa. 



H. W. NoRRis— The Paraffine Method Applied to the Study of the Embry- 

 ology of the flowering Plants. The Development of the Auditory Vesi- 

 cle in Necturus. An instance of the Persistence of the Ductus Veuosus 

 in the Domestic Cat. 



B. Shimek — Additional Notes on Iowa Mollusca. Variations in the Sue- 



ciniclce of the Loess. 

 Wm. S. Windle — Work at the Johns Hopkins Marine Biological Laboratory. 



C. C. Nutting — The Vascular Supply of the Teeth of the Domestic Cat. 



The Homology of the Inca Bone. An Informal Report on the Practica- 

 bility of Dredging in Deep Water Without the Use of Steam. 



Herbert Osborn— On the Distribution of Certain Hemiptera. Laboratory 

 Notes in Zoology. 



Alice M. Beach— Additions to the Known Species of Iowa Ichneumonidce. 



F. A. Sirrine— A New Species of Pemx>higus Occurring on Thorn. 



C. W. Mally— Hack berry PsyUidce found at Ames, Iowa. 



The following resolution was adopted in business session: 



Whereas, The State has begun the good work of a Geological Survey of 

 the State, a much needed investigation, and 



Whereas, This work has been prosecuted for two years with vigor and 

 success; therefore, be it 



Resolved, That we, the Academy of Sciences, do most heartily commend 

 the Geological Survey to the liberality of the General Assembly, with the 

 hope that the Survey may receive all liberal encouragement and the support 

 of such appropriations as may enable it to carry forward the various lines 

 of its most excellent work. 



A resolution was also passed and a committee appointed with ref- 

 erence to securing a better representation of scientific works in our 

 State library and in other libraries of the State. 



