Table of Coi^ teats. 119 



, PAGE. 



the U. S. Agricultural Department easilj' procurable, from the large 

 number of copies issued, 1^73. Bulletins of the Entomological Com- 

 mission, 273. "Insect Life," an instructive periodical, 273. 

 Where the reports of Dr. Fitch may be obtained, 273. Reports of the 

 State Entomologists of Missouri and Illinois, 278. Saunders "Insects 

 Injurious to Fruits " an indispensable volume to fruit growers, 273. 

 Comstock's " Introduction to Entomology"' of special value as an aid 

 to classification, 273. Importance of a knowledge of insecticides, 274. 

 Where information of them may be found, 274. The best insecticides 

 in use, 274. Relative value of wet and dry insecticides, 274. Value of 

 insecticides first shown in the use of Paris green against the Colorado 

 potato beetle, 274. Again demonstrated in protecting from the apple- 

 worm of the codling-moth, 274. In using insecticides, recognize the 

 two classes of insects which take their food in a diflferent manner — 

 by biting jaws or through a proboscis, 2T4. Entire families of beneficial 

 insects which should be ])rotected, 275. Some of them named, 275. 

 The importance of parasitic insects, 275. Ravages of the wheat-midge 

 arrested by parasitic attack, 275. Orange culture in California seri- 

 ously impaired by the scale insect, Icerya Purchasi, 275. Introduction 

 and spread of this scale, 275. The parasites that controlled it in Aus- 

 traha being collected and sent to California for colonizing and multi- 

 plying them, 275. Importance of careful observation of insects, 275. 

 Opportunity for this afforded by an agricultural life, 275. What to 

 do with unfamiliar, and new forms, 276. Benefit that may result from 

 an inquiry into their character and habits, 276. The labor attendant 

 on a contest with insect pests should not cause its abandonment, 276. 

 The insatiate greed and wastefulness of insects, 276. Necessity of 

 opposing them, 276. Not sufficient to rest on the promise of "seed- 

 time and harvest," 276. The force pxiinp with its insecticides should 

 supi^lement prayer for the preservation of the " kindly fruits of the 

 earth," 276. Means for i-esisting insect depredations within the reach 

 of all, 276. Insects must be fought earnestly, 276. Productive crops 

 with less labor, 276. Where may be found the solution of the problem 

 "how to make the farm pay." It may be either failure or success, 

 276. Neglect of the study of insect lives and insect habits not to be 

 longer tolerated, 276. 



(B) PUBLICATIONS OF THE ENTOMOLOGIST DURING 1891 278 



The Sc^uash Bug:* Grain Weevil Infesting Mills: Protection from 

 In.sect Injuries, 278. Bacon Beetle: Insectivorous Birds: Scale Insects: 

 Bark Lice: A Blind Crustacean fi'om a Well, 279. Injurious Insect^: 

 Quince-Tree Borer: Honey-Dew on Pear-Twigs: Arsenic and Honey- 

 Experiments. 280. Entomology: How to Control the Hop Aphis: 

 Apple-Tree Insects of Early Spring: Orange Leaf Trouble, 281. How 

 to Kill the RoseBug: The Cermatia Centipede: The Apple- Worm : Wheat 



* The capitalization of the publicatioDS ig retained in this list. 



