12 ie AU DU OF NB Le ie Bada) 
times as toxic as heptachlor itself. 
Chlordane: Has about the same characteristics and toxicity as DDT. It also 
has great volatility and persons handling it must avoid inhalation. It easily 
penetrates the skin. It used to be applied to lawns at a rate of 60 Ibs. 
per acre for crabgrass control! Fortunately this practice has died out, but 
a great deal of residue from this practice remains. 
Lindane: A form of benzene hexachloride. About as toxic as DDT. Most 
used in vaporizers for homes and restaurants. May induce long lasting ef- 
fects on nerves. 
Benezene hexachloride: As DDT, reduces nitrification, which makes atmos- 
pheric nitrogen available to plants, without which they cannot live. Gives 
musty taste to vegetables. Processing cannot remove the mustiness. 
Toxaphene: Three quarters of residues disappear from spraying site in a 
year. Less toxic than DDT. Causes delayed effects in tissues. 
Methoxychlor: Recommended often for Dutch elm disease in place of DDT 
because less toxic and less persistent. It is less toxic because a liver en- 
zyme alters its molecules. However, Rachel Carson states in “Silent 
Spring” that experiments on animals show a blocking effect on pituitary 
hormones. It is not stored in bodies if no other chlorinated hydrocarbon 
is used. But if liver has been damaged by another chlorinated hydrocarbon, 
methoxychlor may then be stored in the body 100 times faster and have 
effects similar to those of DDT on the nervous system. It is always very 
likely that birds will have picked up and stored some other hydrocarbon 
since their use is so prevalent. 
THE BASIC STRUCTURE AND OPERATION OF 1.A.S. 
The Board of Directors of your Society comprises thirty 
persons from various sections. They meet quarterly at day-long 
sessions in Springfield, and additionally at the Annual Meeting 
and at the Annual Campout. These last two events are rotated 
around the state thus giving the membership the opportunity 
of becoming personally acquainted with the officers and 
directors. The Executive Committee, consisting of all the of- 
ficers, meets inbetween times at the Society’s office in Downers 
| Grove. 
| All directors serve on one or more commitiees. Through 
| the specialized attention of these groups the activities of the 
Society are most effectively initiated and implemented. All 
| |.A.S. members are urged to make their views known to the 
| Board. This can be done by personal contact or by writing 
| to the office at 1017 Burlington Avenue, Downers Grove, 
IIL 60515. 
| Charles Lappen 
| President 
