cclxxii 



demy of Science. The skull was found 8 ft. below the surface, 

 in a mound on Buffalo Creek, two miles below Louisiana. Mo. 



It was remarked by Mr. Hilder, that the marked posterior flat- 

 tening shown by this skull was artificial. 



Dr. G. Engelmann gave the following 



REPORT ON THE METEOROLOGY OF NOVEMBER, 1877. 



The month of November, just past, was generally considered a mild and 

 a rainy month; but, referring to my records, I find that its mean tempera- 

 ture of 41 degrees (at my station on the outskirts of the city) is considera- 

 bly below the average, which is nearly 43 . November of 1870 had a mean 

 temperature of 46°-5 ; 1867, 48°.2, and 1849, even 5 l0 -8» the warmest No- 

 vember I experienced here. On the other hand, ten Novembers in 42 years 

 showed less than 40 mean temperature, that of 1838 only 34°.2, the cold- 

 est of all. 



The moisture and fall of rain was considerable; but with me not more 

 than a little over 3 inches, which is about the average for the month. I 

 have found the rainfall varying from 8.63 inches in 1847, 7-4§ in l86 9. and 

 6.24 in 1850, to 1. 10 in 1845 ; o 91 in 1S75 to no rain at all in 1865. 



The mean temperature for the autumnal months I found 55°.S, which is 

 very nearly normal. As September and November were a little cooler 

 than usually, this is owing to the higher temperature of October, which 

 was nearly 3^ degs. above the average. 



Mr. Nipher remarked that the anemometers located at the Sig- 

 nal Service Office, and at Washington University (distant from each other 

 less than a mile), frequently varied in their daily rates as much as 50 miles 

 in a run of 250 miles. These differences compensate each other in two or 

 three weeks, so that the monthly rate is not appreciably affected. He had 

 mounted one of the signal service anemometers upon the University build- 

 ing, and found the two instruments to agree satisfactorily in their daily 

 readings ; but, even here, gusts of air were found to vary the rates for 

 smaller intervals of time. 



It will be the subject of a future investigation to determine the relation 

 between the distance between the two instruments and the time required 

 for the differences to compensate each other. 



Dr. Herman Nagel was elected to associate membership. 



December 17, 1877. 



The President in the chair. Sixteen members present. 

 The following paper was read by the President : 



