90 Forty-ninth Report on the State Museum 



PAGK. 



rum powder or borax, 114. Barricades with chalk lines and with 

 water, 114. 



Ants in a Lawn US- 

 Injuries to a lawn on Long Island, N. Y., 115. Number of species of 

 ants in the United States, 115. Diversity of habits, 115. Identification 

 of species essential in prescribing remedies, 115. The species complained 

 of may have been Formica rufa, 115. Size of its mounds, 115. Where 

 they may be found, 115. Division of large colonies, 115. How the 

 minor colonies or nests may be found and broken up, 116. Ants dis- 

 tributed over a lawn may be sprayed with kerosene emulsion, 116. Prob- 

 able service of lime or kainit in destroying insects, 116. In reported cases 

 of ant injuries, examples of the different forms should be submitted for 

 identification, 116. 



On Arsenical Spraying of Fruit Trees while in Blossom 117 



Honey-bee poisoning from arsenically sprayed blossoming fruit trees,- a 

 long-mooted question, 117. The poisoning claimed by many and denied 

 by others, 117. May the honey or the pollen become poisonous, 117. A 

 committee of the Association of Economic Entomologists appointed to in- 

 vestigate the matter, 117, Report of the committee, 117. Experiments 

 made by the chairman, 117. Dead bees found within a net inclosing arseni- 

 cally sprayed blossoming tree, 117. Also dead bees beneath trees not net- 

 ted, 117. Predaceous insects may have killed some of the bees, 117. The 

 experiments made deemed not conclusive, 118. Crushed bees visiting 

 arsenically sprayed blossoms would naturally show presence of arsenic, 

 118. Prof. Cook's positive assertion that bees are poisoned by sprayed 

 blossoms, 118. Not proven by his experiments as published, 118. Feed- 

 ing bees in confinement on poisoned syrup, 118. How the question of 

 blossom-poisoning might be settled, 118. Statement that honey-bees will 

 feed on the liquid of arsenically sprayed potato leaves, 118. Prof. Cook's 

 desire that arsenical si)raying of fruit trees in blossom may be pro- 

 hibited by law, 119. The Canadian, law against such spraying, 119. 

 Prof. Pan ton's opinion on the importance of the law, 119. Possibility 

 that arsenic may blight the blossoms, suggested by Prof. Panton, 119. 

 Destroying pear tree blossoms when infested by the pear midge sug- 

 gested as a remedy for attack of the insect, 119. Two important ques- 

 tions for deliberation, viz., the poisoning of bees and their honey, and 

 the prevention of development of the fruit, 120. Investigation by the 

 Experiment Stations solicited, 120. Until settled, spraying of blossom- 

 ing fruit trees should cease, without legislative enactment, 120. Spray- 

 ing of fruit trees indispensable to successful culture, 120. Should not 

 be intermitted during blossoming unless proven to be harmful, 120. 

 Each day of this period may mark some new attack, 120. Harm that 



