592 



" Corky Scab " of Potatoes. 



[NOV., 



from the entire country will considerably exceed last year's 

 shipment. 



The value of cereal crops for export during the year 1908 

 from the entire country is estimated at : — Wheat, £25,100,000 ; 

 maize, £12,200,000 ; linseed, £10,100,000 ; total, £47,400,000. 



The official estimate of the number of live stock for the year 

 1907 is as follows : — 











Mules 







Province. 



Cattle. 



Sheep. 



Horses. 



and 



Goats. 



Pigs. 









Asses. 









Number. 



Number. 



Number. 



Number. 



Number. 



Number. 



Santa Fe 



2,500, 000 



1,800,000 



415,000 







2,000,000 



Cordoba 



2,500,000 



2,800,000 



430,000 



120,000 



850.000 



100,000 



Entre-Rios 



3,000,000 



5,390,000 



590,030 



12,300 



24,000 



40,000 



Corrientes 



6,000,000 



1,400,000 



425,000 



25,000 



35>ooo 



26,000 



Other provinces 



1 1,800,000 



66,i6o,coo 



3,600,000 



387,700 



1,657,800 



675,700 



Total ... 



25,800,000 



77,550,000 



5,460,000 



545,000 



2,566,800 



2,841,700 



The agricultural and pastoral resources of this country with 

 its extensive territory and variety of climate are immense, and, 

 as the population increases, reducing the cost of labour, it 

 promises to become one of the principal food supplying countries 

 of the world. Cotton, vines, rice, coffee, fruits, and many 

 other products must eventually receive more attention. 



"CORKY SCAB" OF POTATOES. 



(Spongospora scabies, Mass.) 



The parasite producing " corky scab " in potatoes, for many 

 years considered as a fungus, is now known to be a member of 

 the numerically small but cosmopolitan group of organisms 

 known as the Myxogastres. 



The history of this group is interesting. In 1833 it was called 

 Myxogastres by Fries, and was included in the fungal family 

 Gasteromycetes on account of the superficial resemblance, during 

 the fruiting condition, to the puff balls. In 1836 Wallroth 

 suggested a new name — Myxomycetes, which was generally 

 accepted for some time. Finally, in 1858, De Bary proposed the 

 name Mycetozoa. His reason for this was the discovery that 



