are literally hundreds of thousands of chemical compounds most of them organic in nature since i have discovered that there are many different chemical classes and many different chemical radicals which can act as a propelling means for lightweight miniature boats it follows that there are many chemical compounds and or mixtures of compounds which rightfully come under the scope of my invention i have experimentally verified this for many such compounds and or mixtures and have in fact made and tested over two hundred formulations as would be expected the propelling speed and duration of activity shows wide variation chemists skilled in the art will also realize that there are many natural substances which contain some of the chemical classes and or radicals which i have discovered to be a propulsion process for small toy boats for example many natural oils contain the aldehyde radical most perfume oils contain aldehydes and esters isoamyl acetate occurs in pear oil normal octyl alcohol is found in most citrus fruits and other natural sources isobutyric acid occurs free in locust bean and in carob bean and ethyl butyrate is present in pineapples if the natural material includes reasonable percentages of one or more of the chemical classes and or radicals which i have discovered as a propulsion process for miniature boats then it may or may not be suitable for this purpose depending upon what other components might be present in general the chemical mixtures present in natural materials do not perform as well as pure compound means the requirements that the substances of my propulsion process should exhibit at least a slight solubility in water and should.