a number of scientific men to undertake the work.

Every spring since then the Gipsy Moth Commission has been at work.

One summer, policemen were pressed into the service. They were stationed
on all the roads leading out of the infected districts to examine every
vehicle that drove through, to see that none of the caterpillars escaped
into the surrounding country by clinging to the wheels or the body of the
wagon.

That year there were such myriads of these caterpillars, that they would
fall by hundreds on the vehicles as they drove under the trees.

The moth policemen were both necessary and useful.

The Commission starts in, this year, with several new inventions for
destroying both caterpillars and eggs, and hopes to make good progress.

Thus far Massachusetts has spent nearly $1,000,000 in her effort to rid
herself of the Gipsy moth.

GENIE H. ROSENFELD.





INVENTION AND DISCOVERY.

[Illustration]