<p style="margin-left: 31.5pt; text-indent: -31.5pt;"><span style="color: #ff0000;"><span style="font-size: 12pt;"><span style="font-family: 新細明體;">西元</span><span lang="EN-US">1727</span></span></span><span style="font-size: 10pt; font-family: 新細明體;"><span style="color: #ff0000;"><span style="font-size: 12pt;">年,</span></span><span style="font-size: 14pt;">英國牧師兼自然學家哈勒斯(</span></span><span style="font-size: 14pt;"><span lang="EN-US">S. Halles</span><span style="font-family: 新細明體;">)做了如圖</span><span style="font-family: 新細明體;">的實驗,數天後實驗組的水面上升,而控制組則否,顯示植物生長時會消耗空氣。但<span style="color: #ff0000;">究竟消耗空氣中的何種成分,不得而知。</span></span></span></p> <p style="margin-left: 31.5pt; text-indent: -31.5pt;"><span style="font-size: 14pt;"><span style="font-family: 新細明體;"><img title="光1.JPG" src="https://pimg.1px.tw/ht045/4b4450198d35f.jpg" border="0" alt="光1.JPG" width="265" height="213" /><span style="color: #ff0000;"> <span style="font-size: 10pt; font-family: 新細明體;">哈勒斯的實驗(注意液面高度的變化)</span></span></span></span></p>