VIEW THE MOBILE VERSION of www.yrd.ca Informational Site Network Informational
Privacy

   Home - Science Experiments - Things Worth Knowing - Wise Facts - Curious Facts



Invisible Ink








Sulphuric Acid one quart, Water twenty parts; mix
together and write with a quill pen, which writing can be read only
after heating it.





Next: Horticultural Ink

Previous: Indelible Marking Ink Without A Preparation



Add to Informational Site Network
Report
Privacy
ADD TO EBOOK


Viewed 1481