288 CHEMICAL MAXUEES. 



neighbourhood of Cracow is richer. It forms a brown mixture of 

 excrements and bone debris. Analysed by Krocker, it gave : — 



TABLE LXXXVII.— ANALYSIS OF HUNGAPJAX BAT GUAXO. 



Per cent. 

 Moisture . . . . . . . . 7-50 



Combustible matter ...... 7o-20 



Ash 17-20 



Its total nitrogen content is from 9* 170 per cent, of which 

 3'60 per cent is as ammoniacal salts. O'llS per cent as nitric 

 nitrogen, and 0-452 as urea, and other organic bodies. The ash 

 consists in part of phosphate of lime, in so far that the phosphoric- 

 acid content is 3 •825 per cent. 



Egyptian Bat Guano contains, according to Popp : — 

 TABLE LXXXYIU.— ANALYSIS OF EGYPTIAN BAT GUANO. 



Per centt 

 Urea ^^.^^^ Average of 37 analyses : 



Uric acid .... 

 Creatine . . . . 



Phosphate of soda (monacid) 

 Insoluble . . . . 

 Moisture .... 



, .-,_^ I nitrogen 3/ per cent 

 .-,7' r (soluble phosphoric 

 acid 7-18 per cent). 



13-4o0 

 0-o7o 

 3-660 



99-285 



This guano is not only the richest in nitrogen of all guanos found 

 up to now, but moreover of all nitrogenized manures. 



Eboli Bat Guano (province of Salerno j contains, according tc^ 

 Dr. G. Paris, 2-996 per cent nitrogen, chiefly nitric nitrogen. There 

 is also found : — 



TABLE LXXXIX.— AXALYSIS OF EBOLI BAT GUANO. 



Per cent. 



Moisture 18-20 



Organic matter 29-11 



Ash 52-87 



100-18 



The ash contains 20-69 per cent of phosphoric acid, of which 47'96' 

 per cent is soluble in citrate. All these deposits are comparatively 

 unimportant. 



Conclusion. — Fifty years ago Peruvian guano completely 

 dominated the manure market ; no other artificial manure could at 

 this epoch meet the wants of the farmer.^ Nitrate of soda was too 



1 The old raw Peruvian guano was exceptionally highly esteemed by the 

 farmers in Scotland, where the translator has also seen it in bags branded 

 " ammonia fixed " in the early 'sixties. The raw guano suited the soil and 

 climate of the Moray Firth coast better than anv other manure. — Tr. 



