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在杂志或专门性的刊物上,我们常常看到滤过性病青(Virus)这个名字。这个名字虽则并不陌生,但是如果要我们立刻给予一个适当的解释,却不是一件容易的事。所以在这里我们先把这个名字解释一番,然后再谈到本文。滤过性病毒是一种能引起生物病害的一种毒素,最近已经有数种病毒能由结晶而取得了。这种病毒因为能通过我们普通用以滤去细菌的漏斗,因此我们便称之为滤过性病毒。换言之,它们是极微小的,超显微镜的东西。要知道它们微小的程度,我们可以举一个实在的例子。最小的滤过性病毒直径有千分之八至十五 micron(1 micron仅为二万五千分之一吋),最大的直径仅有千分之一百廿五至二百七十五micron。与普通大小的细菌
In magazines or specialized publications, we often see the name Virus. Although this name is not unfamiliar, it is not an easy task to give us an appropriate explanation immediately. So here we explain this name first, and then talk about this article. A viral virus is a type of toxin that can cause biological disease. Recently, several viruses have been obtained by crystallization. Because this virus can pass through the funnel we used to filter out bacteria, we call it a viral virus. In other words, they are tiny, ultra-microscopic things. To know how small they are, we can give a real example. The smallest viral virus has a diameter of 8 to 15 micron (1 micron is only 25,000ths of an inch), and the largest diameter is only 1/150 to 270 micron. . With ordinary size bacteria