How to make stethoscope in Little Alchemy

To make stethoscope in Little Alchemy you have to combine this elements:

1. doctor + tool

Stethoscope Step by Step

How do I combine the necessary elements to create stethoscope in Little Alchemy?
Here we show you the walkthrough, just follow the steps below:

1 air + water = rain

2 earth + water = mud

3 earth + fire = lava

4 air + fire = energy

5 earth + rain = plant

6 fire + mud = brick

7 air + lava = stone

8 brick + brick = wall

9 fire + stone = metal

10 wall + wall = house

11 mud + plant = swamp

12 energy + swamp = life

13 earth + life = human

14 human + rain = sickness

15 human + metal = tool

16 house + sickness = hospital

17 hospital + human = doctor

18 doctor + tool = stethoscope

Below you can see a video tutorial on how to make stethoscope in Little Alchemy:

Combinations with other elements are not yet known.