guano quarry, chincha islands in peru, during the 1890s, vintage engraving

black old engraved ancient antique art vintage drawing illustration picture print engraving extraction quarry white vector chincha island peru guano deposit feces urine cave bat gull sea activator bird seal manure fertilizer gunpowder ingredient compost garden phosphorus nitrogen superphosphate gardening aerial topdressing ammonia nitrate plant nutrient agriculture dropping soil enrichment