{"product_id":"9782819944249","title":"Conditions of Existence as Affecting the Perpetuation of Living Beings","description":"pubOne.info present you this wonderfully illustrated edition. IN the last Lecture I endeavoured to prove to you that, while, as a general rule, organic beings tend to reproduce their kind, there is in them, also, a constantly recurring tendency to vary— to vary to a greater or to a less extent. Such a variety, I pointed out to you, might arise from causes which we do not understand; we therefore called it spontaneous; and it might come into existence as a definite and marked thing, without any gradati","brand":"pubOne.info","offers":[{"title":"Default Title","offer_id":47138069348592,"sku":"9782819944249","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9782819944249_p0.jpg?v=1763705690","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9782819944249","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}