CHAP. xv. REV. A. M. NORMAN. 307 



A long correspondence had already taken place 

 between Edward and Mr. Norman ; but, in the midst 

 of it, Edward was again laid up by illness, which lasted 

 for about six weeks. The correspondence dropped 

 for a time ; but it was afterwards renewed. Mr. 

 Norman, in his letter of May 12th, 1862, observed, 

 " I have been absent from home ever since I received 

 your last note, or I should have answered it before. 

 I am extremely sorry to hear of the cause, your 

 serious illness, which prevented your answering my 

 two last letters, and seemed to end a correspondence 

 from which I had derived so much pleasure, finding 

 in yourself such a kindred, nature-loving spirit. I am 

 rejoiced, however, that God has mercifully raised you 

 up again after so much suffering, and that you are 

 recovering the blessings of health and strength. 



" Many thanks for the promise of your kind offices 

 for me in procuring Fish Parasites. Our knowledge 

 of them is at present but limited, and a large number 

 of species new to our Fauna, may, I am satisfied, be 

 found, if properly looked after. I trust, therefore, that 

 you may extend your knowledge of the Crustacea of 

 the Moray Firth to this branch of the subject." 



It would occupy too much space to detail the 

 contents of the letters which Edward received from 

 Mr. Norman and Mr. Spence Bate while their re- 

 spective works were in process of publication. But 

 there are several facts in them worthy of being noticed. 

 There was one Crustacean about which some difficulty 



