After Madhav sent it to me yesterday, I uploaded it to Archive.org, so it's available for all: https://archive.org/details/Vimanarcanakalpa1926

I've also just uploaded the Indrajalavidyasamgraha:

https://archive.org/details/Indrajalavidyasamgraha1915

--

Professor Dominik Wujastyk

,

Singhmar Chair in Classical Indian Society and Polity

,

Department of History and Classics

,

University of Alberta, Canada

.

South Asia at the U of A:

sas.ualberta.ca