REPORT OF THE ENTOMOLOGIST. ps 
Lusettes. A name applied to the worms which die from being unable to molt. 
Magnanerie. Cocoonery. 
Moretti. A variety of the White Mulberry discovered in 1815 by Professor Moretti, of 
Pavia. 
Mori. The scientific specific name for the silk-worm. 
Morus. The botanical generic name of the Mulberry. 
Multicaulis. A species of Morus often called the Chinese Mulberry. 
Muscardine. A silk-worm disease of a fungous nature, characterized in the text. 
Spinneret. A tube projecting from the lower lip and through which the silk issues. 
Organzine. The choicest kind of raw silk, made from the best cocoons, and consider- 
ably twisted. ; 
Ovipositing. Laying the eggs. 
Panhistophyton. Name given by Lebret to the floating corpuscles in the bodies of 
worms affected by pébrine. 
Pébrine. A silk-worm disease characterized in the text. 
Pod. The compact portion of the cocoon which is used for reeling purposes. 
Polyvoltins. A term applied indiscriminately to all races which produce more than 
one brood in a year. 
Prolegs. The ten non-jointed legs under the sixth, seventh, eighth, ninth, and last 
joints of the body of the worm. 
Psorospermie. Ordinary name for the floating corpuscles in the bodies of worms 
affected by pébrine. 
Purgeur. The French word for cleanser—a clasp lined with cloth, through which 
the skeins of raw silk are passed to remove loose silk and foreign particles. 
Quadrivoltins. Those races which produce four broods in one year. 
Raw silk, Silk reeled from the cocoons before being spun and woven. 
Seed. The eggs in bulk. 
Sericaria. A generic name proposed by Latreille, and to which the silk-worm is re- 
ferred by modern writers. 
Sickness. The period of molting. 
<Jesktiage The breathing-holes of the insect; one row of nine down each side of 
the body. 
Spores. The germinating seed of fungi. 
Tambour. The French for reel. 
Tram. Raw silk reeled from inferior cocoons and but slightly twisted. 
Transformation. The change from one state to another, as from worm to chrysalis 
or from chrysalis to moth. 
Trevoltins. Those races of silk-worms of which there are three broods in one year. 
Whites. Those varieties having white cocoons. 
Yellows. Those varieties having yellow cocoons. 
THE GRAPE PHYLLOXERA. 
Various experiments and observations respecting this insect have been 
made by me during the year, but require further time for completion. 
The fact that about 280 tons of California grapes were received weekly 
and sold in the markets of Philadelphia during the past season is suffi- 
cient to show that the grape-interest in this country is increasing in im- 
portance, and to lead to the hope that the discouragement which grape- 
growers in the Mississippi Valley must feel after four consecutive un- 
favorable seasons must needs soon give way before brighter prospects, 
that, it seems to me, are necessarily in store forthem. One thing is sure, 
namely, that the interest manifested abroad in our American grape-vines 
does not flag. These vines are constantly discussed in the foreign 
horticultural journals, while one periodical, La Vigne Americaine (The 
American Vine), is entirely deroted to them. It is a source of satisfac- 
tion to me that the varieties which I first recommended, seven years 
ago, are, in the main, those still sought for and used by the French 
sufferers from Phylloxera, as stock on which to graft their viniferas. It 
is further interesting to observe that the grounds which I took in regard 
to grafting above ground (in the 7th Missouri Report, pp. 108-116); are 
justified by the experience had during the last few years in France. 
Such grafting is found to be quite practicable, notwithstanding the want 
