110 lAliril, 



In 1880 Frey gave a short sketch of J. S. Hnatek in the " Mittheilungen der 

 Bchweiz. entoni. Gesellschaft," v, pp. 557 — 560, and his notice of Jacob EoU, " for 30 

 years his truest and most intimate friend in Switzerland," appears in vol. vi, pp. 

 47 — 51. Frey had first made the acquaintance of Boll in Ziirich in 1849 or 1850. 

 Boll, born in 1828, thus sis years his junior, had then just completed his pharma- 

 ceutical studies at Jena ; their acquaintance soon ripened into friendship, and they 

 made many entomological excursions together, and Boll's observations, " He was a 

 born collector, with a wonderfully sharp eye," had much contributed towards the 

 " Tineen und Pterophoren der Schweiz." Boll's parents and elder brothers had 

 emigrated from Switzerland and settled at Dallas, in Texas. Boll had an idea of 

 following them there, he had an apothecary's business at Bremgarten which furnished 

 but slender profits ; this he disposed of and went to Texas, thereby opening a new 

 page in the history of North American Micro-Lepidoptera. It is perhaps not a 

 treasonable expression, if I mention that up to that time no American Entomologist 

 had mastered the art of manipulating and setting out the smaller Lepidoptera. 

 Boll, with his hands and eyes trained in Switzerland, was a new importation in Texas, 

 and could readily make in a few months such a collection as had never previously 

 existed. After staying more than a year, he went with his collections to Cambridge, 

 near Boston, and there saw Professor Agassiz, who purchased all his collections for 

 the Museum, and perceiving at a glance the value of the man, offered him a situation 

 there ; before settling at Cambridge he returned to Switzerland. He was so altered 

 with his short residence in America, that Frey could hardly recognise him, " he had 

 become intellectually quite another man ; the journey had had a wonderful influence 

 upon him." Boll had returned to Agassiz in 1871, and that autumn made the col- 

 lections of mined leaves which led to the first joint paper by Frey and Boll on 

 American Micros. Boll's wife was attacked with serious illness ; Boll hastily re- 

 turned to Switzerland, but his wife's illness was incurable, and to add to his troubles, 

 she lost her reason ; he remained in Switzerland two years, till (he sufferings of his 

 ■wife were ended by her death. He was then preparing to return to Cambridge, when 

 Agassiz was suddenly stricken down and soon was no more. Boll returned, however, 

 to Dallas, in Texas, where his father and elder brothers were settled, and collected 

 diligently ; in 1875 he returned to Euroi^e, and spent a week at Ziirich with Frey. 

 After Boll had again gone back to Texas, he was engaged by Professor Cope to collect 

 fossil remains in Western Texas ; unfortunately there, whilst camping out far from 

 any settlements, a serious ailment attacked him, and carried him off on the 29th of 

 September, 1880. 



In the " Stettin, ent. Zeit." for 1883 appeared an obituary notice of Professor 

 P. C. Zeller, from the pen of Professor Frey, pp. 413 — 417. This notice, though 

 shorter than one could have wished, is extremely interesting, and is evidently the 

 work of a deeply-moved, warm hearted friend. In 1884 appeared, in the " Mittheil- 

 ungen," vi, pp. 689 — 692, a short paper by Frey on " Teras hippopha'cana, v. 

 Heyden, a Proteus among tlie Tortrices." In 1885, in tlie " Stettin, ent. Zeit.," 

 pp. 97 — 108, appeared a treatise,." Zur Kenntniss des Tineen — genus Elachista," by 

 H. Frey, which may be considered as supplementary to his Monograph of that genus 

 in the 13th volume of the Linnsea Entomologica. 



Professor Frey, besides being so world-renowned as an Eutouiologist, had a very 



