388 



SCIENCE 



[N. S., Vol. XL., No. 1028 



Exhibits were made ia trays of good sods 

 formed by these six grasses, and also of some of 

 the worst lawn weeds. 



A Bough Method of Recording Seasonal Distribu- 

 tion: C. S. Beimlet. 



The method I am about to describe is not meant 

 to take the place of full records or complete data 

 with regard to any gi-oup of living things in which 

 one is particularly interested, but rather to pro- 

 vide a convenient means of summarizing such rec- 

 ords and also to record data concerning animals or 

 plants in which one is less interested and therefore 

 is not likely to take much trouble about. 



The method is briefly this : rule the left-hand pages 

 of a blank book into 12 vertical columns, leaving 

 enough space on the left for the names of the 

 species to be recorded, and leaving the right-hand 

 page blank for any additional data. At the head 

 of these twelve columns write the abbreviations, 

 Jan., Feb., Mar., Apl., May, Jun., Jly., Aug., Sep., 

 Oct., Nov., Dec, and when you have a record to 

 make of a species, record it by the appropriate 

 letter of the month in the column for that month, 

 J standing for early January, a for middle Jan- 

 uary, n for late January and so on, early signify- 

 ing from the first to 10th inclusive, middle for 

 from 11th to 20th, late from 21st to end of month. 

 I have used this method very largely for record- 

 ing the seasonal range of insects and give some ex- 

 amples below: 



eality in which one spends the greater part of one's 

 time. 



E. W. GUDGEE, 



Secretary 



No abstracts have been received for the follow- 

 ing papers: 



"Movements of Plants," by J. D. Ives. 



"A Report on Local Protozoa," by Z. P. Met- 

 calf. 



"By Raft and Portage: A Study in Early 

 Transportation in North Carolina," by Collier 

 Cobb. 



"The Case of the Riparian Owner," by R. N. 

 Wilson. 



"Some Philippine Sponges," by H. V. Wilson. 



"Economic Minerals in the Pegmatite Dikes of 

 Western North Carolina," by J. H. Pratt. 



"The Sclerotinia Disease of Clovers and Al- 

 falfa," by H. R. Fulton. 



"The Use of Home-made Models as an Aid ia 

 Teaching Embryology," by W. C George. 



"Electrical Conduction of Flowing Mercury," 

 by V. L. Chrisler, presented by A. H. Patterson. 



' ' Microscopic Demonstration of Protozoan 

 Spores, Used as Proof of Contamination of Food 

 with Human Excrement," by C. W. Stiles. 



"Some Recent Developments in the Theory of 

 X-rays," by C. W. Edwards. 



' ' The Coggins Gold Mine, " by J. H. Pratt. 



I have hundreds of species of insects recorded 

 in this way and records are both easy of access and 

 very serviceable when one wishes to find at what 

 period of the year any particular insect is likely to 

 occur. Of course separate records could be kept for 

 each year and should of course be kept for different 

 localities, but as a matter of course such a system 

 would necessarily come into use mainly for the lo- 



"The Gyroscope and its Modern Applications" 

 (with a demonstration), by A. H. Patterson. 



"Geology in Relation to the Location of High- 

 ways in North Carolina," hj Collier Cobb. 



' ' The Corn Bill Bug, " by Z. P. Metcalf . 



"A Peculiar Case of Freezing," by R. N. Wil- 

 son. 



"The Nitrogen Tungsten Lamp," by Bert Cun- 

 ningham. 



