exceptionally hard work, but also because of its complete difference 

 from anything I had known before. As previously explained, I had had 

 almost no young life, but had grown up among elderly people. It was 

 the charm of novelty, as much as the relaxation after hard work, and 

 unusually pleasant companionship that made the early summer of 1880 

 a "purple patch" in my memory. 



All this junketing was the seasoning in a dish of hard work, but it 

 was work that I thoroughly enjoyed, for it was free from the sense of 

 "strain and stress," from which Whittier prayed to be deHvered. For 

 the remainder of the semester I continued to attend my lectures and 

 keep my laboratory hours in botany, just as though I were still a humble 

 "Kandidat" and not a lordly "Dr. Phil," My principal occupation, how- 

 ever, was the renewal of embryological work and I spent most of the 

 daylight hours in Gegenbaur's laboratory. He had accepted my thesis 

 for pubUcation in the Morphologisches Jahrbuch, of which he was the 

 editor, but this covered only about half of Calberla's material and I was 

 most anxious to finish it in a second paper. I soon began to get im- 

 portant results, which greatly interested Gegenbaur and he said: "You 

 must immediately prepare two preliminary papers for publication in the 

 Zoologischer Anzeiger, giving a brief resume of the results already 

 attained." This I did and the papers were very promptly pubhshed. 

 Work as I might, however, I could not finish the material before it 

 was necessary to start homeward and this made it necessary for me 

 to return to Heidelberg the following year. 



While busy in the manner described, I received an immense compli- 

 ment from Balfour. He was then preparing the second volume of his 

 great Comparative Embryology and wrote to ask whether I would re- 

 vise the chapter containing the Lamprey and read the proofs of it. I 

 was eager to do this, but felt that I could not promise without Gegen- 

 baur's consent. After some hesitation, he gave me permission to accept 

 Balfour's most flattering offer. The hesitation was entirely on my ac- 

 count, lest I should lose some of the credit that was my due by allow- 

 ing another to make use of my unpublished work. In due time, Balfour's 

 galley proofs arrived and I did my best to put them into accurate shape. 

 He, himself, had gone to Switzerland for his annual outing in the 

 Alps, where, two years later, he met his death. From Zermatt he wrote 

 me a letter which was found in the pocket of an old diary after many 

 years of hiding. When I reread that letter nearly fifty years after the 

 date of its writing, it gave me keen gratification, for it was "appro- 

 bation from Sir Hubert Stanley," which was "praise indeed." 



