azotes on the Development of Gem's najas. 83 



them, as can be seen by the worn-down crowns of the teeth in 

 the gentleman's skull upon the table. 



We could not trace that the bodies had been placed in any sort 

 of coflQn, cist, or cavity, but they had apparently been covered 

 with earth at the time of burial. In one instance, however, we 

 found several large natural iiints placed over the skeleton, as 

 was frequently done in inhumed burials of the bronze age. In 

 this place we found no weapons, ornaments, or remains of 

 objects buried with the dead ; but we did find one fragment of 

 Samian pottery-ware, which I venture to think established the 

 theory that the interment was Saxon (after the first Roman 

 period). 



No doubt further investigation would have revealed further 

 skeletons, and possibly objects of a more definite character than 

 we had so far obtained. 



As it was, we were only four hours at work on the two burials, 

 whereas four days would not be too much to have devoted to the 

 investigation of the round barrow alone. It must be borne in 

 mind that, considering the great ages of such mounds and burials, 

 the round barrow in question being most probably nearly or 

 quite two thousand years old, and considering, too, the perishable 

 nature of metal, bone, and wood, it is hardly surprising that the 

 contents of the barrow should have been of so fragmentary a 

 nature ; indeed, it is a matter of congratulation that we found 

 so much as we did in so short a time, a fact entirely due to the 

 well thought out arrangements of Mr. CoUyer. 



The part of the country we visited is full of relics of a long- 

 forgotten past, and the South Downs, on which the round barrow 

 is situated, have all the peaceful appearance of down-land that 

 has been such from time immemorial ; and yet, judging from the 

 occurrence of such interments as we investigated, and from the 

 evidence that Mr. CoUyer has obtained of others, I should say that 

 this part, at any rate, of the South Downs is a perfect cemetery 

 of inhumed and cremated bodies, not only of Eomans and 

 Saxons, but of prehistoric man of the early iron age, and most 

 probably of the bronze and stone age also. 



113. — Notes on the Development of Geeris najas. 



By W. Budgen and C. H. Goodman. 



(Read October 17th, 1893, by Mr. Goodman.) 



On the 10th of May Mr. Budgen sent me some eggs of Gerris 

 najasf and he has since given me the following information. 

 He had two pairs (male and female) of these insects in 



