76 
LORQUINIA 
Especial pains should be taken with the bearded chitons, and no 
chiton "with whiskers," even the smallest, should be dried or cleaned, 
but killed carefully in the expanded condition and preserved in alco- 
hol. Great care should be taken not to damage the various bris- 
tles or other processes of the girdle. Cotton, owing to the certain 
entanglement of its fibres in the chaetae,.is not a satisfactory packing 
material for such specimens, gauze or cheese-cloth being better for 
the purpose. 
Field notes on the station, habits, relative abundance, etc., of all 
species found are always worth while, while a label with the date 
they were taken and accurate locality data should always accompany 
the specimens after final preservation. Should opportunity occur to 
observe oviposition or any other peculiar habits of the animals, as 
much information should be obtained as possible and carefully re- 
corded. 
Finally a word should be added on behalf of the very small 
chitons. Not only are the younger stages of growth frequently quite 
different in appearance from the adult condition, and very insufii- 
ciently known for most of our species, but many forms are small, 
even when fully grown and some are so difficult to recognize witti 
certainty in the field that the collector cannot go amiss in saving 
every specimen encountered. I here refer simply to the juvenals 
which are commonly to be found in company with the adults of the 
same or different species. The usually excessively minute post-larval 
stages are likewise of the greatest interest, but their collecting rquires 
somewhat special methods, which will quite likely not be found 
exactly similar for all the species. Through the courtesy of both 
parties involved 1 am able to quote an instructive paragraph from a 
letter on this subject written by Dr. Harold Heath to Mr. E. P. 
Chace. I know of no one who has had so wide an experience in this 
particular field as has Dr. Heath. "I have collected hundreds of small 
chitons, many of them not over 1/50 of an inch in length, in the fol- 
lowing way. In pools and from cliffs where adult and fairly well 
grown chitons abound I chisel off bits of stones, corallines, mussels 
supporting worm tubes, etc., and place these in a bucket or glass jar 
and place it in a dork cool place. Do not let any water remain in the 
bottom of the vessel ; merely keep the specimens moist with the water 
that clings to them. After 24 hours or so the chitons will wander out 
from cracks they occupy and can be located with a hand lens. At 
first I found this pretty slow work owing to scarcity of material, but 
since I have located rich districts and can find at least 100 in every 
bucketful." 
RECENT WORK ON THE LEPIDOPTERA 
Doctors Barnes and McDunnough, of Decatur, Illinois, are now 
our leading Lepidopterists in this country. The recent Checklist of 
