293 



CHAPTER XIX. 



BAIT THE "BONNIE DUNDEE" CORRESPONDENCE. 



THE year 1874 may be regarded as a kind of epoch 

 in the scientific part of this biography, for in that 

 year the Palaeontographical Society published the 

 " Monograph of the Post-tertiary Entomostraca," by 

 Brady, Crosskey, and Robertson. 



If the credit of planning the work be due to Mr. 

 Crosskey, and if it were the critical acumen of Dr. 

 Brady that crowned the edifice, there is still reason to 

 suppose that the foundations and most of the solid 

 parts of the structure were put together by the perse- 

 vering industry and skill of David Robertson. 



The work and correspondence connected with bring- 

 ing out the monograph made the earlier months of 

 the year very busy ones. Nevertheless, in May, he 

 found or made time to go with his wife to the Isle of 

 Man to visit Mrs. Robertson's relations. The kindness 

 of their friends in desiring to show them all the lions 

 of the place curtailed the time that might have been 

 otherwise devoted to natural history. Yet Robertson 

 did not fail to skim the sand on the beach for cumacea, 

 nor to go out dredging in the day time and with the 

 surface net at night. 



