Vol. XXXl] ENTOMOLOGICAL NEWS Il5 



Symposium: The functions and interrelation of the State Entomologi- 

 cal Departments. H. A. Gossard, Entomologist, Experiment Station, 

 Raymond C. Osburn — Head, Department of Zoology and Entomology, 

 Ohio State University and E. C. Cotton, Chief, Bureau of Horticulture. 



Herbert Osborn — Notes on Leaf-hoppers. H. E. Evans — The Effect 

 of the Federal Plant Quarantine Act on the Nursery Business. W. M. 

 Barrows — The Changes Which Take Place in Insect and Arachnid Muscle 

 During Metamorphosis. T. L. Guyton — Results of the Use of Magnesium 

 Arsenate as An Insecticide in 1919. W. H. Larrimer, LaFayette, Indiana 

 — Army Worm Control Through County Organization. L. L. Huber — 

 Two Parasites of the Resplendent Shield Bearer. Annette F. Braun — 

 The Study of Microlepidoptera. C. L. Metcalf— The Use of Insect 

 Genitalia in Classification. W. C. Kraatz — Remarks on the Insect Fauna 

 of Mirror Lake. C. H. Kennedy-^Life Histories of the Dragon Flies. 

 H. A. Gossard— The Relation of Bees to Fire Blight. E. L. Wickliff— 

 Insect Food of Young Bass. H. L. Dozier — Observations on Some Florida 

 Insects. R. S. McKay — Observations on Orthoptera in Southern Ohio 

 in 1919. E. W. Long— Apiary Inspection in Relation to Entomology. 

 W. V. Balduf — Soy Bean Insect Investigations. 



Round Table. The Hessian Fly in Ohio in 1919. T. H. Parks, Leader. 



R. C. Osburn — Some Remarks on the Genus Syrphus. F. H. Crecker — 

 Distribution of Fresh Water Sponges by Caddis Fly Larvae. J. S. Hine — 

 Blood-Sucking Insects Observed on the Katmai Expedition. E. A. Hart- 

 ley — Some Observations on Bark Beetle Depredations in Western Yellow 

 Pine in Oregon. P. R. Lowry — Remarks on the Dactylopiinae of Ohio. 

 J. S. Houser — The Onion Maggot. 



Exhibits: Microlepidoptera, with Examples of Larval Work— Miss 

 Braun. Differentiating Muscle Cells and Developing Tendons in the 

 Legs of Spiders — Prof. Barrows, i. Lumbricus terrestris as an Onion 

 Pest. 2. Sphaerostilbe cocophila destroying San Jose Scale — Mr. Houser. 

 Map of Periodical Cicada in Ohio in 19 19 — Prof. Gossard. 



New ofificers elected were as follows: President — J. S. Houser; Vice- 

 President — H. J. Speaker; Secretary— T. H. Parks. 



Obituary 



% 

 Dr. H. C. Wood. 



Horatio C. Wood, M. D., LL. D., emeritus professor of 

 Materia Medica, Pharmacy and General Therapeutics in 

 the University of Pennsylvania Medical School, died January 

 3, 1919. He was born in Philadelphia, January 13, 1841, 

 was educated at the Westtown School and the Friends Select 



