Fiually a few days ago we received tbe sad news that Dr. Hermann 

 Dewitz, Custos at the Zoological Museum of Berlin, Germany, died on 

 May 16, after long illness, at the age of forty-two years. He was a per- 

 sonal friend and correspondent and published a number of smaller papers 

 on a great variety of entomological subjects, notably a series of articles 

 on the motion of insects on smooth vertical surfaces. In descriptive en- 

 tomology he was interested in West and Central African butterflies and 

 also wrote a descriptive paper on the earlier stages of exotic Lepidop- 

 tera. 



The death of Dr. George Thurber, one of the first horticultural writ- 

 ers of America, is a sad blow to his many friends and aduiirero, and a 

 deep personal loss to the Entomologist, who had a delightful personal 

 acquaintance with him for many years. Dr. Thurber was born in Prov- 

 idence, R. I., in 1821, and was a naturalist of the United States aud Mex- 

 ican Boundary Survey in 1850, ou which expeditions he collected the 

 immense stock ot plants which furnished the material for Asa Gray's 

 'Plant* Novie ThurberiautB," published in 1854. He later lectured 

 on chemistry and botany at the Cooper Union and before the New York 

 College of Pharmacy, and in 1859 was chosen to the chair of Botany 

 and Horticulture in the Agricultural College of Michigan, which place 

 he filled until he became editor of the American Agriculturist in 1863. 

 After twenty-two years of singular success as editor of this journal, 

 he was compelled from failing health to relinquish its active control, 

 though he continued to contribute to its columns till within a short 

 time of his death. He published several books relating to agriculture 

 and country life, " American Weeds aud Useful Plants," which ap- 

 peared iu 1859, being still the standard work on the subject, and he 

 also wrote the botanical articles in Appleton's Cyclopedia. His knowl- 

 edge of insects was perhaps greater than that of most persons who 

 make no profession of it, and his correspondence with the writer is full 

 of keen observation aud suggestion, with an unrivaled admixture of 

 humor. 



Mr. "Weed on Ohio Insects.— In the entomological portion of the bul- 

 letin of the Ohio Agricultural Experiment Station, second series, 

 Vol. Ill, No. 4, Mr. Clarence M. Weed presents a number of practical 

 articles ou Economic Entomology, comprising the following subjects: 

 Si)raying to prevent insect injury. Bark-lice of the Apple and Pear, the 

 Butialo Tree hopper; insects aflecting corn, aud the Ox-Warble-tly or 

 Bot-fly. 



In the first article a number of available spraying devices are described 

 and figured. The more important insecticides are also giveu aud the 

 methods of api)]ying each to various crops are described. The Bark- 

 lice of the Ap[»le aud Pear treated are the well-known i)ests, the Oyster- 

 shell Bark louse {Mytilaspis pomorum) aud the Scurfy Bark-louse {Chio- 

 nasiiis furfurufi). In the discussion of the injury occasioned to fruit 



