104 JOURNAL OF THE 



It was known in Brazil in the year 1878* in the roots of the 

 coffee tree, and has since been stndied and published under the 

 generic name Meloidogyne by Golbi.f Leuckart is of the opin- 

 ion that this is a speceies of Hetcrodeva (see foot-note in Central- 

 blatt fiir Bakteriologie und Parasitenkunde, Bd. Y, p. 840, 

 1889). It is also known in Scotland, according to W. G. 

 Smith. ;|; 



Dr. Neal§ states that it cannot survive the cold of severe win- 

 ters in America north of about the January isotherm of 50° as 

 shown in the No. 2 Isothermal Lines of the U. S. Signal Service, 

 1881 . I do not know that any experiments have been conducted 

 to demonstrate this. If it can survive the winters in Scotland it 

 can endure the winters of all our Gulf and South Atlantic States. 

 The January isotherm of 50° strikes the Atlantic coast just below 

 Savannah, includes the south-eastern corner of Georgia, the very 

 southern limits of Alabama, and a corner of Louisiana. The 

 isotherm of the same month and year which passes near this place 

 is 45°. It starts above Charleston, cuts Georgia through the 

 centre and passes a little south of Montgomery. The isotherm 

 of 40° starts Dear the boundary corner of Virginia and North 

 Carolina, passes north of Atlanta, and includes the major part 

 of Alabama, Mississippi, Louisiana and Texas. The average 

 temperature of Edinburgh, Scotland, during the month of Janu- 

 ary is about 39°, so that we might fully expect the root-gall 

 nematode, if once introduced, to tiirive as far north as the Jan- 

 uary isotherm of 35°, or eviu farther. This isothermal line 

 starts in at the coast north of Norft)Ik and runs through middle 

 Tennessee. Indeed, I ani inclined to think if a favorable oppor- 



*Siii- line maladia rln Cafeier Observee au Bresil. Compt. rend. hebd. aoad. sc. Paris, 

 1878, T, LXXXVII, No. 2i, S. 941-943. Ab.straet in Bot. Jalire.sberioht (rust), p. 173, 1878. 



IHolatorio sohre a molestia do cafeeiro do Rio de Janeiro. Bd. VIII, Archives do 

 Mnsoo naeional do Rio de Janeiro. 



Biologisehe Misoellen aus Brasilien, VII. Der Kaffeenematode Brasiliens, Meloidogyne 

 exigna (t. Zoolog. Jahrbneher, abtli. f. System., Geogr. u. Biol. d. Thiere, Bd. IV, Hit. I, 

 pp. 2()2-2fJ7, Jena, 1889. 



Abstract in Centralblatt fur Baliteriologie und Parasitenkunde, Bd. V, pp. 839-840, 

 1889. 



JDiseasc of Oats — Hcterodera radicicola, Miiller, Gardeners' Chronicle, New Ser., Vol. 

 XXI, p. 172, 1880. Abstract in Bot. Centralblatt, Bd. XXXI, p. 247, 1878. 



^The Root-knot Disease of the Peach, Orange, and other Plants in Florida, duo to the 

 work of Anguillula, Bulletin No. 20, Division of Entomology, U. S. Dept. Agr., Wasliing- 

 ton, 1889. 



