Science including Natural Sciences, Chemistry, Physics, Mathematics, Astronomy, Medical Sciences etc

Under the Southern Cross – Horace Leaf [Intro by Sir Arthur Conan Doyle - Spiritualism Down under etc] – First Edition 1923

Scarce book and impossible to find with its dust jacket (albeit chipped). A super copy.

Horace Leaf (1886-1971) was a serious spiritualist, clairvoyant with and interest in psychometry and healing. He was a friend and associate of Sir Arthur Conan Doyle – who writes the introduction. The pair worked together to find the missing Agatha Christie and made contact with Lenin when he was on the other side.

Conan Doyle had done his own tour of the Antipodes and had wanted Leaf with him – Leaf couldn’t make it. Afterwards, Conan Doyle persisted with Leaf to make a trip down under … Leaf didn’t think he had the financial wherewithal … Conan Doyle responded by saying he had left five hundred pounds in Australia for Leaf.

The book is a very interesting read. Published by Cecil Palmer, London in 1923. Thick octavo, 263 pages, illustrated from photographs taken on tour. All in excellent condition – accept that there are three strange pin style holes right through the rear board and the last group of pages – strange and almost unnoticeable – could be some strange experiment has taken place?

Leaf arrives in Western Australia and makes himself busy and then off to the Gold Fields; on to Melbourne, Sydney and Brisbane before a boat to New Zealand, north and south islands. Returning to Sydney he makes a trip to Tasmania [the only addition to the Conan Doyle route].

This all sounds like a regular travel trip but not so. Along the way we have interesting psychic goings on with some startling occurrences particularly the Melbourne readings. Interesting positive references to aboriginal character. Near the end we have a journey up Mt Wellington Hobart to a tea house to have the leaves read by a psychic – who passes the test – this must have been at the Springs Hotel which burned down in the 1967 bush fires.

Leaf wrote Conan Doyle’s obituary published in “Ghost Stories” in October 1930. Unfortunately, Leaf may indirectly have exacerbated Conan Doyle’s health leading to his move to the “other side”.

Psychic tour of Australia by Conan Doyle Associate.

$120.00

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Rare Large Sized Microscope Size – Lantern Fly – China

No date or maker but this presentation was a specialty in the late Victorian / Edwardian era. Reference authority “Bracegirdle” shows a number of “outsized” examples but none quite like this.

In modern terms known as the spotted lantern fly. The insect is on the move and a potential threat in Australia – modelling has shown that it could survive well in western and north-western Victoria. When we say a threat, it was endemic to China and Vietnam but moved into South Korea in 2006, Japan in 2009 and the USA in 2014 … so the move is on.

Here the little blighter is beautifully preserved and presented in Canada Balsam … we know that CB was the mounters choice due its quality and the cursive narrative says so.

A microscopical rarity outsized mount of the Spotted Lantern Fly.

$180.00

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Fortunes in Minerals including Uranium [Simple Tests and How to Make Them] – Ion Idriess

An Ion Idriess classic which followed “Prospecting for Gold”. Experts regarded this book as a serious compendium. Includes chemical tests and sections on the use of the blowpipe.

Published by Angus and Robertson, a 1954 edition of the revised edition. Large octavo, 310 pages with some instructive illustrations. A very good copy bar the dust jacket is chipped and aged – now protected in Brodart.

Ion Idriess classic – makes your fortune in minerals – plenty have.

$40.00

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Amsler Polar Planimeter [Measuring the area of complex irregular shapes/ boundaries] c1910

Plush-lined fitted case some 12” long contains a polar planimeter invented by Swiss mathematician Jacob Amsler. All in very good condition and working order.

The instrument was a revolutionary change from the complex Cartesian system base instruments used before. This device uses polar co-ordinates.

With this device two arms are connected with a pivot both arms moving around the anchor. As the pivot moves back and forth it traces an area whose net measurement is zero. The means that the area traced by the tracer point exactly equals the area of the closed curve. The area is equivalent to 2pi X the product of the length of the tracer arm, the radius of the counting wheel and the number of revolutions of the counting wheel.

In more modern times mathematicians apply “Green’s theorem”.

Amsler’s radical and very useful new design

$190.00

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Strawbale Homebuilding – Alan Gray.

An “Earth Garden Magazine Publication” i.e. self published by Alan Gray of PO Box 2, Trentham, Victoria – love it!.

The title more or less explains all. Octavo, perfect bound, 156 pages with numerous illustrations from original photographs of the magnificent constructions. This method may have gone out of fashion with the move towards stainless steel, glass and posh bathrooms.

Time for a resurgence we would say – the economy monetary and environmental should be promoted by Governments and all of their cascading authorities.

Every public servant should be made to build one – sorry if you live off the purse.

More money and delight can be made from this book over any other

$25.00

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Mines and Minerals – Herbert Cox and Felix Ratte – Sydney 1885

First edition of this extremely scarce book for the mining industry. Printed by John Woods of Bridge Street, Sydney and published in 1885 as part of the “Technical Education Series. The principal author Cox was Instructor of the Department of Geology, Mineralogy and Mining at the Sydney Technical College [advertisements to his course appear at the rear] – his co-author held a similar position at the Ballarat School of Mines.

Octavo, 342 pages, plus index and numerous trade related advertisements at the back and the front. Some adverts of the key machinery providers of the period – Dunn, Babcock etc., relevant booksellers lists which include Geike’s volumes and the odd amusing elements such as the Waterproof Riding or Driving Toga which doubles as a bush bed covering. Original brown cloth covered boards with gilt tiles and embellishments to front, back and spine. The condition is still good to better we think for such a rarity which no doubt has been quite well used. The binding is a little loose but not that bad. Find another one!

Super information starting with chapters on geology, stratified deposits, Mineral veins and lodes, irregular and alluvial deposits. Moving to the Physical Properties of Minerals and their composition and determination. Noble metals and silver and lead, mercury, copper, tin, tungsten, titanium, and molybdenum. Leading to haloids, salts, quartz, opal, silicates, and precious stones.

Near the end we have two chapters which drew our attention – Assays and the use of the Blowpipe and Special Assays for Gold and Silver. The use of the carbon block and the blowpipe …

Special Australian book on Geology and Mineralogy – 1885

$240.00

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Under the Southern Cross – Horace Leaf [Intro by Sir Arthur Conan Doyle - Spiritualism Down under etc] – First Edition 1923

Rare Large Sized Microscope Size – Lantern Fly – China

Fortunes in Minerals including Uranium [Simple Tests and How to Make Them] – Ion Idriess

Amsler Polar Planimeter [Measuring the area of complex irregular shapes/ boundaries] c1910

Strawbale Homebuilding – Alan Gray.

Mines and Minerals – Herbert Cox and Felix Ratte – Sydney 1885

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