22 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



ceived, in March, 1883, a second lot of about two 

 stones direct from the north of Chile. My brother 

 obtained them in the market-place of the village 

 ^lere he lives (Carrizal-Bajo), but they had been 

 grown on irrigated ground at Huasco, S. lat. 28°, a few 

 miles to the south of Carrizal. Some were boiled 

 by him and found to be good. They arrived in 

 good condition, and were pretty, clean-skinned, dun- 

 coloured potatoes, some round, some long, and 

 apparently quite ripe. The variety is that used for 

 making potato-Hour and for exporting to places on 

 the coast, and is named "Borajilla," which may be 

 rendered " borage-leaved." 



As to results, I may first give an account of the 

 lot I had the best opportunity of watching. I had 

 nine short drills — seven of the first lot, and two of 

 Borajilla — planted in a border at Innellan early in April. 

 The soil, which is rather stiff, had been well manured 

 in winter by having sea-weed dug into it. It got 

 no other manure ; but a good deal of sea-sand 

 was put into each drill, and the potatoes were 

 planted in that. They grew freely, and it was a 

 pleasure to look at their fresh, broad, green leaves ; 

 but in August, after some cold, wet, stormy 

 weather, I observed on both sorts the woolly spots 

 caused by Peronospora infestans. These, however, 

 were not very plentiful, and I had to look about 

 for some time before I could get a few good 

 patches to put under the microscope. Still there 

 was enough to show that even the Borajilla, with 

 everything except the weather in its favour, was 

 not disease-proof. I did not see them again from 

 the end of August till the end of October when 

 I dug them, the shaws by this time having become 

 quite withered. As to the crop, there were plenty 

 of potatoes, but these were mostly small, our season 

 having been either too short or too cold for them; 

 and as to disease, there was very little,— so little 

 indeed that if this had not been an experiment 

 specially directed to disease the amount would 



