121 



TABLE I. 



') Among which brown 10 (2). 



2) „ „ brown, white 1 1 (3). 



3) „ „ brown, yellow 3(1). 



4) 1911, April 12: "on the outside reddish, inside violet". VIII. 

 records: "on the outside common red". 



5) An observation of an arc of Lowitz by Hissjnk 1910, Sept. 7 

 neglected. 



6) Colours mentioned 2 times. 

 "All colours" once 

 "rainbow-colours" twice. 



— April 23 VIll 

 at Zutphen was 



